Reply to comment by DefiantResist757 in TIL, the placenta that forms with a fetus isn't created by the mother. It grows from the fertilized egg and some fetuses actually develop outside the uterus attached to the intestines in the body cavity. by darw1nf1sh

Reply to comment by Mr3k in Researchers claim a human trial with 90 people has shown a simple laser therapy improves short-term memory by 25%. The treatment, called transcranial photobiomodulation (tPBM), has had claims in previous studies to also improve reaction times, accuracy and attention by lughnasadh