Theobromine is found in cocoa and, to a lesser extent, coffee. It is chemically similar to caffeine but does not have such a pronounced stimulant effect.

A new study, published in the journal Aging, measured levels of this compound in people’s blood.

They found that those with the highest levels had epigenetic markers associated with slower biological aging.

But what is theobromine?
Theobromine is a bioactive phytochemical, meaning that it comes from a plant, and it can influence human physiology.

The primary sources of theobromine in the human diet are chocolate and, to a lesser extent, coffee.

This compound is a major component of cocoa beans, comprising around 3.3% by weight. It is molecularly similar to caffeine and shares some of its effects.

However, experts c...

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the journal Science Advances. It suggests that when our solar system formed, a nearby supernova (the massive explosion of a star near the end of its life) bathed it in cosmic rays containing the radioactive ingredients to make rocky, dry worlds. This mechanism could be ubiquitous across the galaxy.

Earth-like planets are thought to form from planetesimals (objects made of rock and ice) that were dried out early in the solar system’s history...

A study by researchers at the Federal University of São Carlos (UFSCar) in Brazil, in partnership with University College London (UCL) in the United Kingdom, concluded that the combination of abdominal fat and muscle loss increases the risk of death by 83%, compared to people without these conditions.

This combination is so dangerous that it identifies an even greater problem: sarcopenic obesity. This condition is characterized by loss of muscle mass while gaining fat throughout the body. It is a difficult condition to diagnose, and it is related to loss of autonomy and a worsening quality of life in older adults...

In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big Bang—a cosmic Jekyll and Hyde that loo...