a negitive one
Drugs produce their effects on human behavior by interacting with the central nervous system. They can alter neurotransmitter levels, affect brain activity, and influence the brain's reward system, leading to changes in mood, behavior, and perception. These effects can vary depending on the type of drug and its mechanism of action.
Cause there are some drugs that can be harmful to the human body. These drugs are in the "Hardcore" category such as meth, crack, LSD, and cocaine. Other drugs such as marijuana people are only afraid cause society tells them to be. Honestly marijuana has no negative affect on the human body or brain.
no. dogs brain not kill by the drugs of humans, human drugs are not dogs for the drugs.
The brain is affected by any substance which contains an actionable chemistry, not all of which are considered drugs. Drugs are defined as substances known to affect the human brain's condition and functionality. They (drugs) change the brain in the short term by supressing or triggering different chemical reactions which results in the 'altered state' or 'high' feeling. In the long term they have negative effects on the quantity and the quality of the brain's cells, its chemistry, and ultimately its behavior and health.
chemical burns
Zoonosis ; see related link .
Zoonosis ; see related link .
Harmful substances can have various effects on the human body, depending on the substance and level of exposure. These effects can include respiratory issues, organ damage, neurological problems, cancer, and even death. Long-term exposure to harmful substances can lead to chronic health conditions and decreased quality of life.
One argument against is that it involves experimenting with the health and safety of human beings. An argument for is that although effects of drugs on animals may be similar to their effects on humans, some effects may be specific to human beings only. Another is that testing drugs on human beings may result in unexpected negative results for the subjects.
Smoking has many harmful effects on the human body. Cigarette smoke contains many toxic substances. Carbon monoxide reduces the oxygen carrying capacity of the blood, tar (polycyclic aromatic hydrocarbons) causes cancer, nicotine is an addictive drug and a vaso-constrictor which reduces blood circulation and contributes to heart disease, particulates coat the lungs and contribute to emphysema, etc. As for the effects of taking drugs, that depends upon which drugs you are taking, however all drugs have side effects, and most recreational drugs are extremely dangerous. Common side effects include addiction, insanity and death. Some drugs do have legitimate medical uses, but they should never be used for fun. There are much better ways to have fun. Try playing a video game.
The antibiotic kills or prevents the growth of harmful bacteria without causing side effects in the patient.
-human beings have a basic need to find ways to COPE with their environment -human brain chemistry can be affected by psychoactive drugs, behavioral addictions, and mental illness. -the ruling classes, governments, businesses, and criminals have been involved in growing and distributing drugs -technological advances in refining, synthesizing, and manufacturing drugs have increased their potency -the development of faster and more efficient methods of putting drugs into the body has intensified their effects