Its common. In the last 10 million years, there have been 4 or 5 reversals per million years
The conditions listed above are common side effects of DEPRESSANTS. Depressants are drugs which slowed down the central nervous system an the brain. They are usually used to treat anxiety and sleep disorders. Other side effects of depressants include: slurred speech, impaired memory and judgement, lowered inhibition, etc.
Im not sure but if there was a graph maybe
