dana.org

d87g8 TIL Da Vinci discovered that severing the spinal column of a frog resulted in instant death. But it seems he felt disturbed by hurting living things, stopped working on live animals, and became a vegetarian. In fact, he loved animals so much that he would buy birds at the market and let them go.
OooQ6 TIL The functions of performing mental arithmetic and regulating our emotions are housed in the same part of the cerebral cortex, and the processes that support one also support the other; which is thought to be why practising mental arithmetic can prevent depression and anxiety.
8a5L TIL three times as many left-handed people have schizophrenia, bipolar disease or autism.