Muscle cramps are sudden and involuntary muscle contractions that can be very painful. They usually occur during or after intense physical activity, but can also...
Water is simply composed of two chemical elements: hydrogen and oxygen, more specifically two hydrogen atoms bonded to one oxygen atom (the famous formula H₂O). This small...
While we sleep, the body produces large amounts of growth hormone (GH), a key substance for repairing and consolidating the muscles stressed by exertion. This...
Saliva is a complex biological fluid composed mainly of water, up to 99%. The remaining 1% consists of various substances such as electrolytes (sodium, potassium, calcium, etc.),...
The sense of smell is directly connected to the part of the brain that processes our emotions and memories, called the limbic system. As a...
When an insect bites us, it often injects some of its saliva under our skin. This small intrusion immediately alerts our immune system, which views...
When a person experiences an allergic reaction, it is a sign of dysfunction in the immune system. Normally, the immune system is responsible for protecting...
Our need for sleep comes from a long evolutionary history. From the earliest living organisms, periods of activity and rest naturally alternated to optimize energy...
REM sleep plays a crucial role in emotion processing. During this stage of sleep, the brain is particularly active, and studies have shown that REM...
Imagine the carpal tunnel as a small narrow tunnel located in your wrist, formed by the bones of the lower part and a thick fibrous...
