Answer:
20% of the body's oxygen supply.
Explanation:
The brain represents just 2% of a person's body weight, yet it uses about 20% of the body's oxygen supply. Without it, the brain can't perform even the most basic functions. The brain relies on glucose to power the neurons that control everything from conscious functions like planning and thought to automatic, unconscious processes like managing heart rate and digestion.
<span>FALSE: Pollution that impacts the environment where an individual lives will impact that person's health in numerous ways. For example it could destroy the food chain they rely upon if it damages or kills crops or livestock. Furthermore, it could be the cause of poisoning if it is toxic and somehow ingested.</span>
Psychoactive drugs affect the body’s central nervous system. With the ability to change the brain’s functionality, they quickly alter mood, perception, and consciousness.
Moreover, many consider moderately drinking coffee or alcohol recreational use. While doing so, you’ll undergo mood changes. Typically, you feel better, more alert, or relaxed. Likewise, prescription pain medication can alter your perception of pain so you don’t feel discomfort.
Consequently, some of the drugs that fall under this category are habit-forming. Particularly, these include stimulants like cocaine and depressants like alcohol. Unfortunately, becoming chemically dependent on a substance could potentially lead to addiction.
Because some psychoactive substances occur naturally, such as mushrooms or marijuana, many people think they’re less harmful than manufactured drugs. However, marijuana addiction does occur, and using mushrooms causes negative side effects.
The common side effects of abusing these drugs include:
Agitation
Disorientation
Tremors
Dizziness
Motor impairment
Drowsiness
Paranoia/hallucinations
