What they found was that when they bucketed these individuals based on the amount of sleep they were getting in the week prior (i.e. 4, 5, 6, 7, 8 hours), the amount of sleep they got was was directly proportional to their rate of vulnerability to infection. In fact, relative to those who were getting 7 or 8 hours of sleep a night, the group who was sleeping only 5 hours every night were more than 50% more likely to become infected by the cold.
Research has shown that cases that reported having slept 7 hours or less at night, were almost 3 times as likely to become infected by the Rhinovirus, otherwise referred to as the common cold. On the other hand, individuals who slept 5 hours a night or less were almost 70% more likely to contract pneumonia, a respiratory infection that is associated with COVID infections.
For those with skin sensitive skin, many may not have a choice with sunscreen options, the author would recommend trying nano-zinc oxide cream or lotion sunscreens as an alternative to purely organic sunscreen formulations. However, it would be best to avoid nanoparticle inorganic sunscreens in spray or powder form, in order to minimize risk of inhalation of these particles.
Sunscreens work by reducing the UV light that gets on your skin, and it does so through the electrons in its active ingredients that absorb the UV, which convert the light energy into other less harmful forms of energy.
Living in a tropical country close to the equator where sunlight is available for 50% of the day, one cannot stress enough the importance of wearing sunscreen for skin health, overall reduction of skin concerns like melanoma, hyperpigmentation, and hastening of signs of skin aging which is associated with UVA rays. On top of that are more physically irritating and dangerous concerns caused by UVB rays such as sunburns (erythema), and production of melanoma, which is a form of skin cancer.