Genetics

Genes, yes, but obesity pandemic mostly down to diet: study

A three-fold jump since 1975 in the percentage of adults worldwide who are obese has been driven mainly by a shift in diet and lack of exercise, but genes do play a role as well, according a large-scale study published Thursday.

Health

Immune study sheds light on vitamin D effects

Scientists have uncovered fresh insights into how vitamin D affects the immune system and might influence susceptibility to diseases such as multiple sclerosis.

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