Drugs have been studied since human gathered herbs
dreams have been found that they go for 7 seconds.
How long have you been having these dreams?
Pi have been studied for over 10 centuries!!!
100 years or 115 years
All human beings have good dreams sometimes and bad dreams sometimes, so there is no particular problem here that needs to be studied. Dreams in general are studied by psychologists, who find insight into the psyche through dream analysis. Sleep researchers investigate the physiology of dreaming; how and when it occurs, and the associated sleep states of dreams. See the attached links for more information.
Sigmund Freud
No the environment can not be studied from a long distance because they can not see noting.
There are so many fields that have not been studied in great depth. The least studied field is the one that hasn't been discovered yet.
Long Hard Funky Dreams was created on 1997-01-27.
In my dreams!
For more than 50 years, considering the fact that chemistry has been around to improve medicine and engineering.