WEDNESDAY, June 30 (HealthDay News) -- High doses of caffeine could increase muscle power and endurance during activities ranging from walking to running a marathon, British researchers report.

The finding stemmed from testing on mice.

The researchers, from...

WEDNESDAY, Aug. 3 (HealthDay News) -- The identification of a new multidrug-resistant strain of salmonella shows the importance of public health surveillance in a global food system, French scientists say.

Their analysis of national surveillance systems in the United...

SATURDAY, Feb. 27 (HealthDay News) -- Long-term use of marijuana can lead to increased risk of developing hallucinations, delusions and psychosis, a new study shows.

Australian researchers asked nearly 3,100 young adults averaging about 20 years of age about marijuana...