This is what coffee can do to the body’s aging

Coffee can do more than just keep us awake – it may also affect how the body handles aging and cell damage. A new study suggests that certain substances in coffee interact with a specific protein in the body that is linked to stress, inflammation, and the cells’ ability to repair themselves.

Researchers at Texas A&M University have identified a possible biological explanation for previously observed health effects of coffee. According to the study, coffee compounds bind to the NR4A1 receptor, a protein that plays a central role in the body’s stress response and aging processes.

NR4A1 functions as a so-called nutrient sensor that helps regulate gene activity during stress and cell damage. The protein is also involved in inflammation, energy balance, and tissue repair – factors that in turn influence the risk of, among other things, cancer and cognitive decline, reports Euronews.

“Coffee has previously known health-promoting properties,” says Stephen Safe at VMBS.

“What we have shown is that some of these effects may be linked to how coffee compounds interact with this receptor, which is important for protecting the body against stress-related damage.”

In the study, the researchers specifically pointed to polyphenols and other bioactive substances in coffee that can influence NR4A1’s activity. When these substances bind to the receptor, it appears to reduce cell damage and slow the growth of certain cancer cells in laboratory tests.

The researchers also observed that the protective effects disappeared when NR4A1 was removed from the cells, further supporting the theory that this receptor is vital for coffee’s biological impact.

“If you injure almost any tissue, NR4A1 responds by reducing the damage,” says Stephen Safe. “If you remove that receptor, the damage gets worse.”

At the same time, the researchers emphasize that coffee’s health effects likely cannot be explained by a single mechanism.

There is still much work to be done, says Safe. “We’ve found a link, but we need to better understand how important it really is.”

Previous studies have also linked moderate consumption of caffeinated coffee to reduced anxiety as well as improved attention and alertness. Caffeine has also been associated with lower levels of inflammation.

Interestingly, research also shows that decaffeinated coffee may provide cognitive improvements, such as better memory and learning. This suggests that other compounds in coffee, like polyphenols, may contribute to these effects – independently of caffeine.