Psychedelic Drugs

Under previous regime this industry was promoted actively.
With the bizarre coalition government they are still active.
If your children are poor in their studies either in schools or universities, it is worthwhile checking their habits including alcohol.
 Below I have given how hashish effects one's memory

Psychedelic Drugs
Hashish is a potent form of marijuana extracted from cannabis plants.
Short term effects
The short term effects of hashish use include problems with memory and learning; distorted perception (sights, sounds, time, touch); difficulty in thinking and problem solving; loss of coordination; and increased heart rate, anxiety, and panic attacks.
Long term effects
People who smoke marijuana often have the same respiratory problems as cigarette smokers. These individuals may have daily cough and sputum, symptoms of chronic bronchitis, and more frequent chest colds. They are also at greater risk of getting lung infections such as pneumonia. Marijuana contains some of the same, and sometimes even more, of the cancer causing chemicals found in cigarette smoke.
Effects on Learning and Social Behavior
Marijuana or hashish affects memory, judgment and perception. Learning and attention skills are impaired among people who use hashish heavily. Longitudinal research on marijuana use among young people below college age indicates those who use marijuana have lower achievement than the non users, more acceptance of deviant behavior, more delinquent behavior and aggression, greater rebelliousness, poorer relationships with parents, and more associations with delinquent and drug using friends.
Effects on Pregnancy
Any drug of abuse can affect a mother's health during pregnancy. Some studies have found that babies born to mothers who used marijuana during pregnancy were smaller than those born to mothers who did not use the drug.
A nursing mother who uses marijuana passes some of the byproducts to the baby in her breast milk. Research indicates that the use of marijuana by a mother during the first month of breast feeding can impair the infant's motor development.
Addictive Potential
A drug is becoming addictive, if it causes compulsive, uncontrollable drug craving, seeking, and use, even in the face of negative health and social consequences. While not everyone who uses marijuana becomes addicted, when a user begins to seek out and take the drug compulsively, that person is said to be dependent or addicted to the drug.

The biggest danger is going for harder drugs like heroin.
Manna Mushroom

Manna (Hebrew) or al-Mann wa al-Salwa (Arabic),is an edible substance according to the Bible and the Quran. It is believed that, god provided this substance to the Israelites during their travels in the desert.
Manna is from Heaven, according to the Bible, but the inherent identification of manna as naturalistic is historic.
In the Mishnah, manna is treated as a natural but unique substance, "created during the twilight of the sixth day of Creation" and ensured to be clean, before it arrives, by the sweeping of the ground by a northern wind and subsequent rains.
According to classical rabbinical literature, manna was ground in a heavenly mill for the use of the righteous, but some of it was allocated to the wicked and left for them to grind themselves.

There are many types of mushrooms used from China to Middle east to Mexico with various and potent psychedelic constituents.