The recently-discovered endocannabinoid signaling system appears to have a role in controlling neurological functions including cravings, mood, and memory, making it an attractive drug target.
Most consumer products currently contain some components from genetically-modified organisms, but the health and environmental risks of these products are still unknown.
Implanting multiple embryos at once, a common practice in U.S. in vitro fertilization clinics, increases the chance of a successful pregnancy, but also risks expensive and potentially-dangerous multiple births.
Obesity is turning out to be much more complex than overeating and lack of exercise, as new research finds genetic, hormonal, neurological, and even immunological factors that appear to relate to weight.