Many people notice that they can feel physically drained after a long day of studying, problem solving, meetings, or deep concentration, even if they have barely moved their body. Mental work can create a surprisingly strong sense of fatigue, and this is not just psychological. It is closely linked to physiological processes in the brain and nervous system. The brain constantly consumes energy while processing information, regulating attention, and maintaining focus. Prolonge

Hvorfor våkner man før alarmen ringer? Her forklares hvordan døgnrytme, kortisol og søvnstadier påvirker kroppens oppvåkning.

Food tastes weaker when the nose is blocked because much of food aroma comes from odour molecules that normally pass from the mouth to the nose.