Trusted Harvard Medical School experts put today's health news stories in perspective and explain how issues affect you.

Lung CT Scans May Help Detect Cancer

Half of ICU Patients Infected, Study Finds

Study Finds One HIV Drug Combo Better

Study Predicts Big Rise in Diabetes, Costs

No Heart, Stroke Benefit Found for Ginkgo

Study Expands Pharmacist's Role in Care

Conflicting Cancer Guidelines Not New

CT Scans May Aid Chest Pain Treatment

Study Reassuring on Pregnancies With MS

Some B Vitamins May Raise Cancer Risk

Panel Backs Fewer, Later Mammograms

Low Vitamin D May Harm Arteries

U.S. Raises Estimate of Swine Flu Deaths

Pain May Linger After Breast Surgery

Study Supports Simpler Cholesterol Tests

Study: Retirees Report Better Health

No Improvements Seen in CPR Study

Kidney Problems May Affect Heart, Arteries

Green Tea May Slow Down Oral Cancer

Statins May Harm Some With Heart Failure

Theory Stirs Dispute on Flu Shot Advice

19 Kids Die of Swine Flu in a Week

Healthy Habits Can Delay Diabetes 10 Years

Study: Two Tests for Cervical Cancer Equal

Experts Caution on 'Bioidentical' Hormones

Study: Women's Heart Attacks Not Different

Sleep Apnea Called Transport Safety Issue

Illegal Turtle Pets Infected 107 People

Many Don't Get Preferred Heart Failure Drug

3 Men Die in Detroit Road Race

Possible Scleroderma Treatment Reported

Report: Smoking Bans Curb Heart Attacks

Studies Question Aggressive Care in Elderly

Reassurance About Swine Flu Vaccine

Study Compares 2 Prostate Procedures

More Attention to Preventing Teen Suicide

Many Parents Don't Favor Swine Flu Shots

Stroke Risk 31% Higher With Shingles

Genes Affect Breast-Cancer Drug Success

Diet May Affect Rate of Depression

Study Finds No Increased Risk With Chantix

Study Tallies Kids' Bad Drug Reactions

Study Favors Treating Gestational Diabetes