New Tools to Detect Alzheimer's

Congress Urges Baseball to Ban Smokeless Tobacco

Major League Baseball and its players union told Congress they are willing to discuss banning smokeless tobacco during their next round of collective bargaining.

Diseased Bushmeat Worries Scientists

Researchers testing bushmeat smuggled into the U.S. have found strains of a virus in the same family as HIV, according to preliminary findings.

Modified Crops Get Vote of Approval

A report by an independent scientific group found that genetically modified crops have increased profits for U.S. farmers while reducing environmental damage caused by agriculture.

U.S. Faces Doctor Shortage

Experts warn there won't be enough doctors to treat the millions of people newly insured under the health-care law.

• Readers React: 'This was totally preventable'

Avatar II: The Hospital

Doctors, nurses and students are using online community Second Life to learn how to cope with crises, boost clinical skills and make their facilities more efficient.

• Video: Medical Training in Second Life

Baby Fat May Help You Lose Weight

In the quest to fight obesity, scientists are looking at an intriguing question: Is it possible for adults to lose weight by having more baby fat? Research shows potential in the calorie-burning power of "good fat" in adults.

Battling Cancer Costs

Patient-advocacy groups are stepping up programs that offer financial help to cancer patients. Efforts include helping with co-payments and subsidizing cancer drugs.

Taking Years Off Your Smile

By adding length or bulk to teeth, dentists are looking to reshape the facial structure to smooth wrinkles and give a younger appearance.

FDA to Review Anti-Obesity Drugs

Three new anti-obesity drugs have been submitted to the FDA for approval. The drugs work by affecting the patient's central nervous system to dampen appetite.

India Develops Transgenic Chicken

India has developed a transgenic chicken variety that is not only fleshier than normal breeds sold in poultry shops, but can also be used in the treatment of diseases, a government statement and a senior scientist said.

U.K. Probes Organ Donor List Errors

Britain's transplant authority said that it was investigating several hundred thousand errors in its organ donor list stretching back about a decade.

How the New Law Affects Medicare

Supporters and opponents of health-care reform differ over whether the measure will ultimately bolster -- or undermine -- Medicare.

Romney Dogged by Health Plans

As Romney rails against Obama's health-care initiative and backs candidates demanding its repeal, people have been asking why he shepherded a similar health-insurance system into law for his state.

• Vote: Should Romney seek nomination?
• Liz Cheney Calls for Health Care Repeal

States Reignite Abortion Debate

Less than three weeks after the passage of the health-care bill, the abortion debate is being reignited: Lawmakers in least six states are pushing for legislation to block abortion coverage in some health plans.