A new report reveals fewer teenagers are having sex than they were 25 years ago.
In 1998, more than two-thirds of teenage males and over half of females had sexual intercourse at least once.
However, new data shows a 14% drop among girls and a 22% decline among boys who are sexually active.
Most teens used some type of birth control at their first experience, including condoms and oral contraception.
Girls who did use protection at their first sexual intercourse were less likely to have a baby as a teenager.
A low birth weight combined with an unhealthy lifestyle as an adult may be linked to an increased risk of type two diabetes.
Harvard researchers followed nearly 150,000 men and women for more than 30 years.
Low birth weight alone was associated with a 22% increased risk of diabetes and unhealthy habits accounted for a 59% increased risk.
However, 17% of diabetes cases were linked to a combination of these factors.
A class of drugs used to treat diabetes may also protect against Parkinson's disease.
A new study looked at people taking glitazones, which helps reduce insulin resistance.
Researchers found these patients were 28% less likely to be diagnosed with Parkinson's disease than diabetics taking other medications.
However, this protection was only seen in patients currently taking glitazones and not in those who had used them in the past.
It's not yet known if these findings apply to people without diabetes or if glitazones can slow the progression of Parkinson's disease.