Touching our faces

The primary pathways for viruses to enter the body are through the eyes and mouth, where protective barriers are less robust compared to other entry points. In contrast, areas like the nose and anus are fortified with mucous membranes and host beneficial bacteria, which f...

When we experience stress, our bodies change:

• The stress hormone increases.
• Our cardiovascular system activates its fight or flight response.
• Inflammation increases. Inflammation helps us fight off bacteria.
• Our ability to fight off viruses decreases.
...

Some people suffer from prosopagnosia - or face blindness - which affects about 2% of the population.

Prosopagnosiacs can't identify people from their faces. They will carefully scan faces for details like moles, skew teeth and monobrows. When they view a face from an odd ...