Earth’s magnetic poles flip roughly every 200k to 300k years, but the last reversal was about 780k years ago. Some scientists think we’re overdue, but the timing is unpredictable and could take thousands of years. A flip might disrupt technology and
Curly hair may have offered evolutionary advantages
Studies suggest curly hair could have aided heat regulation and brain protection in early humans by trapping air and shielding the scalp from UV radiation more effectively than straight hair.
Breasts are associated with sensuality due to their visual and tactile role in sexual attraction, and can generate orgasms through nipple stimulation; these are normal hormonal changes, often asymmetrical and hereditary, that indicate fertility and matur
A 2016 study suggested that eating ice cream for breakfast may increase mental alertness. However, the study did face criticism for not clarifying whether it was the ice cream itself or the affect of cold temperatures on the brain.
