LONDON (Reuters) - Having sex every day improves the quality of men’s sperm and is recommended for couples trying to conceive, according to new research.

WASHINGTON (Reuters) - The U.S. Food and Drug Administration (FDA) on Monday confirmed that it has found E. coli O157:H7 bacteria in a sample of Nestle Toll House refrigerated cookie dough.

WASHINGTON (Reuters) - Health experts are fond of saying any new disease is just a flight away from anywhere, and a report published on Monday shows the new strain of H1N1 flu followed the airline route map as it spread around the globe.

CHICAGO (Reuters) - Dr. Louis Philipson has already started fielding calls from worried diabetics after new studies of 300,000 patients released on Friday suggested the Sanofi-Aventis insulin drug Lantus might raise the risk of cancer.

NEW YORK (Reuters Health) - The ability of a mother to identify a weight problem in her child appears to be dependent on her own weight, with overweight mothers tending to underestimate her child’s weight. On the other hand, a mother’s ability to correctly determine the weight status of a child who is unrelated to [...]

SYDNEY (Reuters) - Australian scientists have developed a “trojan horse” therapy to combat cancer, using a bacterially-derived nano cell to penetrate and disarm the cancer cell before a second nano cell kills it with chemotherapy drugs.

WASHINGTON (Reuters) - President Barack Obama’s drive to overhaul the U.S. healthcare system may be back on track thanks to Senate efforts to cut the price tag to trillion, but a bipartisan deal on the sweeping proposal still is far from certain.

CHICAGO (Reuters) - A Colorado meat company is expanding a recall of beef due to possible contamination by E.coli O157:H7 bacteria after an investigation found 18 illnesses may be linked to the meat, the company and the U.S. Agriculture Department said on Sunday.

HONG KONG (Reuters) - Revelers across Asia who snort the animal tranquilizer ketamine for a hallucinogenic high may face incontinence and other health problems as new dangers of this cheap party drug start showing up in long-term studies.

CHICAGO (Reuters) - More than 1 million people in the United States may have been infected with the new H1N1 swine flu, U.S. health officials said on Friday, and infections continue to rise.