Tag: Human body
Why do we have goose bumps?
“To have goosebumps”: the expression appeared in the XVIIe century and we use it when we are cold or when we feel a strong emotion such as fear. But what…
Covid-19 is not transmitted sexually, but affects the quality of sperm
After Covid-19, the quality of the sperm of men affected by the disease deteriorates. Morphological, mobility or quantity disorders can last for several months in rare cases. You will also…
Why do we have cold feet?
Your feet are still frozen despite the three pairs of socks you put on? This inconvenience, which mainly affects women, has several explanations. The tracks and advice to remedy it.…
Do nails always grow at the same speed?
The nails are growing. Tirelessly. Day by day. But sometimes they can seem to take a little break. Or at least a slowdown. And even specialists are not quite sure…
The human eye and how it works in 12 pictures
In humans, vision is the most developed sense: an important part of the cortex brain is used to process visual information. It works as follows: the photoreceptors present on the…
Can we drink snow?
Consuming snow is tempting. When skiing, we exert ourselves, we sweat and we get dehydrated. Surrounded by all that solid water, sometimes it’s hard to resist. So, is it safe…
Why do we measure the hematocrit level?
Hematocrit refers to the proportion of red blood cells in the blood. Too high or too low can be a sign of a health problem. But the hematocrit is also…
Intercostal pain: multiple causes
From the organic cause which can be extremely serious (myocardial infarction) to simple muscle contracture, intercostal pain is intense and can have very varied origins. Different traumas, pregnancy, stress or…
Malléoles: what is it?
The malleoli are protruding bony structures located at the level of thejoint that connect the leg and the foot. Each ankle has two malleoli, a kind of bony protuberance of…
What are the peculiarities of left-handed brains?
Left-handers are rare, only around 10% of human beings. How is this particularity expressed in the brain? Researchers have analyzed several thousand brain images to identify the differences between left-handed…