Nicotine, an addictive stimulant found in the tobacco plant, can increase the release of dopamine and other neurotransmitters in the brain. But claims that the chemical is not addictive and can ...

Some evidence reports natural medications, such as Wugongtang and Dihuangyinzi, may help slow the progression of ALS or Lou Gehrig’s disease. However, they cannot cure it. Amyotrophic lateral ...

For this week’s Open Questions column, Dhruv Khullar is filling in for Joshua Rothman. When David Fajgenbaum was a twenty-five-year-old medical student, at the University of Pennsylvania, he started ...