A reanalysis of twin data from Denmark and Sweden suggests that how long we live now depends roughly equally on the genes we ...

The headline figure of lifespan being around “50% heritable” risks being misunderstood as meaning genes determine half of a ...

A recent study published in Science challenged this trend, revising the estimate upward to about 50% by accounting for changes in external causes of death – such as accidents and infectious diseases – ...

Is Obesity Genetic or Environmental? Get All the Details This article was reviewed by Lynn Marie Morski, MD, JD. Key ...

New study in Science suggests genetics might account for 50-55% of human lifespan, a significant shift from previous beliefs.

Many factors influence how long you live, such as diet, exercise, smoking, drinking, environment and other variables. It also ...

Twin studies can help geneticists determine whether some trait or condition is caused by the environment, or by genetics. Since identical twins carry basically the same genome, if a trait is due to ...

Environmental factors such as lifestyle and the medications you take influence the effects your genes have on your body — and can clarify how diseases develop. When you purchase through links on our ...

A new study from researchers at Children's Hospital of Philadelphia (CHOP) reveals that the cumulative "wear and tear" on the body known as allostatic load (AL) can be measured in early adolescence ...

The COVID-19 pandemic gave us tremendous perspective on how wildly symptoms and outcomes can vary between patients ...