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Time change: what effects on our body?



Time change: a question of energy saving

Established in 1976 in France, then adopted by all the countries of the European Union in the 1980s, the time change was originally decided to save energy! In fact, in 1973 the first oil shock occurred: by extension, the prices of oil and fossil fuels skyrocketed.

To lighten the country’s energy bill by allowing more hours to be worked with sunlight, the government of the time decided to reinstate the seasonal time change (which had already been in effect from 1923 to 1940). The results are there and it always works!

In fact, in its latest report on the subject, the French Agency for the Environment and Energy Management (ADEME) indicates that the time change saves no less than 440 GWh, that is, the annual electricity consumption of 800,000 homes! !

Changing weather: a chronobiological misunderstanding

If this alternation between summer and winter time is of interest in terms of energy savings, for Dr. Marc Rey, a neurologist specializing in sleep and author of When sleep wakes us up (Solar) is nonsense chronobiological: “The time change should be suppressed to maintain only the winter time. The idea is to have a biological rhythm that follows solar time. In summer, we are two hours behind the sun. It is better to have sunny afternoons as long as possible, but for health and energy, winter is much better. »

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The end of the time change is also more or less scheduled since a major European consultation on its removal was held in August 2018 with a very clear result: 84% of voters voted in favor of stopping the time change. winter in favor of summer time. weather. Therefore, we would favor sunny summer afternoons to the detriment of our biological interest!

But this time change issue is actually just a detail of the mismatch between our rhythms of life and our biological rhythm, as Marc Rey points out: “Ideally, our entire social organization would be under review if we wanted to respect our biological rhythm.” swing. Indeed, since the dawn of humanity we have been conditioned to work more in the summer, to be able to carry out the grape harvest, the grape harvest, to supply ourselves with food for the winter, a period in which we were resting. Today we do the opposite with a peak of activity during the winter months and a long break in the summer. »

Summer time, winter time: a measured impact on health

What about our health, especially in terms of bedtime, on the subject of time change? “At the level of winter time, there is no reduction in sleep time, so there are not many consequences on our health. On the other hand, in summer we lose an hour of rest, which is quite important and can cause drops in energy during the day, a tendency to drowsiness… But this lack of sleep is more or less compensated. easily over time depending on the individual. »

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In fact, if we sometimes experience the transition to winter time with difficulty, it is above all due to the lack of sunshine that can cause a seasonal depression: “The transition to winter time coincides with a decrease in sunshine. Thus, we must go to bed earlier to get up earlier and make the most of the sun For people who have long working hours – which start in the morning when the sun does not rise and end at nightfall – you have to force yourself to go out as much as possible when noon to take advantage of the sun’s rays. »

5 tips to live better winter

Follow the course of the sun as closely as possible: adapt your rhythm of life according to the light! In winter, go to bed earlier to getting up earlier allows you to make the most of the morning light.

Take advantage of the benefits of phototherapy: If it is not possible for you to modify your times of getting up and going to bed, Marc Rey strongly recommends the use of phototherapy. “To avoid small depressive drops when the sun is scarcer, you have to illuminate as much as possible. Light therapy is a very good option for those who feel especially lack of energy with the arrival of winter. To take full advantage of the benefits of phototherapy, it is necessary to practice it in the morning so that it has a very appreciable enhancing effect. »

Prioritize natural vitamin C: some, to better cope with the transition to winter, are tempted to opt for a vitamin cure and in particular vitamin C known to relieve fatigue and increase tone: “It is useless to make great cure in vitamin C since the surplus is evacuated in the urine. In case of low, it is possible to take a small supplement of vitamin C from time to time, but in this case eating a fresh fruit is more than enough. »

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Increase your intake of vitamin D: instead of supplementing with vitamin C, Marc Rey advises increasing the intake of vitamin D “whose synthesis is triggered by sun exposure. It is true that in winter certain deficiencies may appear. However, vitamin D is essential for the proper functioning of our body and the protection of our health in general. A natural and simple way to ensure a good supply of vitamin D is to eat more fatty fish (salmon, herring, etc.). Soy beverages are an alternative that can fit into a vegetarian diet.

Take advantage of the benefits of a nap: In the event of a punctual pump, do not resist the call of micronaps and their multiple benefits!

to go further

==> A healthy autumn

Less sun, more stress… After the start of the school year, it’s not just the leaves that fall, but also the energy! To avoid getting caught up in fatigue, here are our good actions to take now.

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Well Being

4 wellness trends will gain momentum in 2023



Presse Santé

It’s 2022 and it’s time to look ahead to see which wellness trends will take over in 2023. From healthy eating to exercise, these are the trends you can’t miss! So, what are you waiting for? Get ready to jump on the wellness bandwagon!

Wellness is a hot topic, and it will only grow in popularity in the years to come. There are some trends that are already starting to emerge, and the French are in a unique position to embrace them. Here are four wellness trends we can expect to see in 2023:

Plant-Based Diets:

In recent years, there has been a growing interest in plant-based diets. This trend is largely driven by concerns about the health of the planet and animal welfare. However, it is also increasingly recognized that plant-based diets have immense health benefits.

In fact, a growing body of research suggests that these types of diets may help reduce the risk of chronic disease. For these reasons, plant-based lifestyles are predicted to continue to grow in popularity in the coming years.

The French are known for their love of food, so this trend may start to gain traction in France in the coming years. There are already a number of plant-based restaurants in major cities like Paris, so this trend is likely to continue to grow.

The Digital Detox:

It’s no secret that we are addicted to our screens. We are constantly checking our phones, browsing social media, and watching TV. This constant exposure to blue light can have serious consequences, including trouble sleeping, eyestrain, and even anxiety. That’s why so many people are looking for ways to disconnect from their devices and focus on real-life interactions.

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Digital detox, also known as Digital Detox, which consists of disconnecting for a certain time, is becoming more and more fashionable. And adults aren’t the only ones enjoying it: even kids are getting in on it. According to a recent study, French children spend an average of four hours a day on digital devices. This is why digital detoxes would be a trend in 2023 that the French can embrace. Unplugging has a number of benefits, including increased productivity, reduced stress levels, and improved quality of sleep.

The intuitive exercise:

In recent years, however, a new trend has emerged in the world of fitness: intuitive exercise. Instead of following a rigid training regimen, intuitive athletes listen to their bodies and allow themselves to move in the way that feels most natural to them. This approach is gaining popularity in the United States, and there’s no reason why it shouldn’t spread to France. After all, what could be more French than listening to your body and doing what makes it feel good?

According to a recent report, this is an upward trend. In fact, it is projected that by 2023, more than half of the world’s population will be engaged in some form of intuitive exercise. So why not go ahead and start embracing this trend now? Who knows, you might find that it’s just what you need to achieve your fitness goals.

Holistic therapy:

“The French know how to live.” They have a rich culture that celebrates food, wine, and art. But what about well-being? In recent years, there has been a growing interest in holistic approaches to health and wellness, which consider the mind, body, and soul. This trend should continue in the coming years, and the French are well placed to embrace it.

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There are many types of holistic therapies, from sophrology to thermal therapies through meditation, acupuncture and aromatherapy. France has a long history of using herbal remedies and its people are known for their love of nature. As more and more people around the world seek to reconnect with their natural surroundings, the French are likely to be at the forefront of the wellness revolution.

* HealthKey strives to convey health knowledge in a language accessible to all. In NO EVENT can the information provided replace the opinion of a health professional.

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Well Being

How to prevent bedbugs from invading your bed and home?



Presse Santé

Bed bugs (Cimex lectularius and Cimex hemipterus) are insects that feed every 5 to 10 days, mainly on human blood. They are usually active at night, and their bites often cause itchy skin.

Although they are not known to spread disease, they are considered public health pests. Here’s how to keep bed bugs out of your bed and home.

How do bed bugs get into your home?

Bed bugs enter your home by traveling on:

– the clothes of your family and visitors
– the luggage
– the boxes
– used furniture
– messy bedding

How can I prevent bed bugs from entering my home?

A number of precautions you can take to prevent bed bugs from infesting your home, include:

– Before leaving used furniture in the house, check for signs of bed bugs (bed bugs can live a year or more without eating).

– Put a protective cover on your mattress and box spring.
– Consider getting a mattress cover pre-treated with a pesticide.
– Consider getting a plain, light-colored mattress cover that makes it easy to detect bed bugs.
– Be careful and be vigilant if you use a shared laundry room.
– Vacuum frequently.
– Reduce clutter.

Travel prevention tips to avoid bringing bed bugs

You don’t want to bring bed bugs home after a trip. Here are precautions to keep in mind when traveling, including:

– Avoid putting your luggage on the bed. Consider placing your suitcase on a shelf that has been moved away from the wall or in a dry tub.
– Bring a flashlight and use it to check for signs of bed bugs. In addition to bedding, check the edges and seams of the mattress, box spring, and bed frame.
– Check furniture near the bed, such as nightstands.

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If you spot signs of bed bugs, notify your host or hotel management immediately.

Lwhen you return home from a trip

When you come back :

– Separate the clothes with which you have traveled and wash them immediately with hot water.
– Vacuum your luggage, then outside, empty the contents of the vacuum into a plastic bag. Seal the bag tightly and dispose of it in an outdoor trash can.

Do you already have bedbugs in your house?

In addition to the presence of the bugs themselves, signs of a bed bug infestation include:

– Rust stains on bedding, caused by crushing bedbugs.
– Small dark spots on your bedding. Bed bug feces looks like a small dot made with a ballpoint pen. It can be rubbed on the fabric, like a marker dot on the fabric.
– Tiny white eggs or eggshells, about the size of the head of a pin (about 1 millimeter).
– Small yellowish-white skins, which the young shed as they grow.

What are bed bugs like?

Adult bed bugs have:

– a size similar to the size of an apple seed
– often a musty smell
– not freshly fed, they are brown and have a flat, oval-shaped body
– if it has recently fed, it has a reddish-brown color and a rounder, more globe-shaped body.

Young bed bugs (nymphs):

– they are smaller than adults
– are translucent yellowish white
– if they have not fed recently, they are almost impossible to see with the naked eye.

where to look for them

Bed bugs are not big and can get into small hiding places. To give you an idea of ​​its size, if you can fit a credit card through a slot, there’s room for a thumbtack.

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Bed bugs usually hide around your bed:

– on the mattress and box spring, in cracks created by seams, labels and edging
– in the crevices of the headboard and bed frame.

In case of strong infestation, they can be found far from the bed:

– in the seams and between the cushions of chairs and sofas
– in the folds of the curtains
– under wall hangings
– at the junction of the wall and ceiling
– under peeling wallpaper
– in drawer joints
– in electrical sockets

Bed bugs can travel up to 6 meters from their hiding place to feed.

Key points to remember

There are several ways to try to prevent bed bugs. Here are a few:

– take precautions during the trip
– check second hand furniture
– use a protective cover on your mattress and box spring
– vacuum frequently

If, despite all of these precautions, you discover bed bugs in your home, act quickly. You will need to get rid of bed bugs in the early stages of the infestation. The longer they stay in your home, the more difficult it will be to remove them.

* HealthKey strives to convey health knowledge in a language accessible to all. In NO EVENT can the information provided replace the opinion of a health professional.

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Well Being

5 materials that you must have in your wardrobe this winter!



Presse Santé

It’s winter again, the time of year when the cold sets in and we all tend to bundle up. There are different materials that you can use to protect yourself from the cold, but which is the best for you? In this blog post, we’ll cover some of the most common materials used to keep you warm and how effective they are. Stay warm and safe!

The money :

When it comes to staying warm in cold weather, wool is one of the best materials you can choose. Wool fibers are capable of trapping heat and insulating the body, even when wet. This makes the wool an ideal choice for clothing, blankets, and other items that will be exposed to the elements. Additionally, wool is breathable and naturally antimicrobial. It won’t make you sweat or irritate the skin. And wool’s natural water-repellent properties help keep you dry in rainy or snowy conditions. So if you are looking for a material that will keep you warm and comfortable in cold weather, choose wool.


When the temperature starts to drop, it’s time to bring out the cashmere. This luxurious fabric is made from the soft undercoat of cashmere goats. As it is known for its softness, warmth and durability. Cashmere is also extremely lightweight, making it a perfect choice for layering. The fibers are also resistant to static and pilling, so your cashmere sweater will always look pristine. And being a natural fiber, it is still one of the environmentally friendly materials. It is therefore the ideal season to opt for cashmere. It will allow you to feel comfortable throughout the winter.

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the polar:

When it comes to staying warm in cold weather, fleece is one of the best materials. The fleece is made of synthetic fibers, which means that it retains heat very effectively. It also wicks moisture away from the body, keeping you dry and comfortable. In addition, the fleece is light and easy to wear. Making it a great choice for camping and backpacking. Finally, fleece is available in a wide range of colors and styles. Which allows you to find the perfect look that suits your needs. Whether you’re looking for a cozy scarf or a warm pair of mittens, fleece is back this year to wow you!

The origin:

Few materials can match the performance of down. Down is the soft, fluffy layer of feathers that grows under the stiffer outer feathers of ducks and geese. It is made up of thousands of tiny filaments that retain heat and provide excellent insulation. The down is also very light and compressible. Which makes it ideal for jackets and sleeping bags. In fact, down is so good at keeping people warm that it is often used on cold-weather expeditions where conditions can be extreme. So if you’re looking for a material that will keep you warm in the coldest temperatures, down is definitely worth considering.


Flannel is a popular fabric for good reason. It is not only soft and comfortable, but also very good at keeping you warm. Its tightly woven fibers retain heat effectively, making it an ideal choice for winter. And since flannel is so versatile, it can be used for everything from shirts and pants to scarves and hats. In fact, even high-end brands like Versace have included flannel in their collections. So if you’re looking for a cozy way to stay warm this winter, don’t overlook flannel. This may be the perfect fabric for you.

* HealthKey strives to convey health knowledge in a language accessible to all. In NO EVENT can the information provided replace the opinion of a health professional.

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