Mild cognitive impairment (MCI) sounds pretty harmless.

But it‘s not. And research indicated that individuals can improve cognitive function by the benefits of green tea extract with L-theanine.

MCI means you have memory or language problems beyond those attributed to normal aging. Your friends and family may notice your lapses in memory. But it doesn‘t interfere with your day-to-day life. However, most experts agree that having MCI raises your risk of developing Alzheimer‘s disease.

Currently, there is no mainstream treatment for mild cognitive impairment. But you know I‘m not a mainstream guy. A new study found that men and women with mild cognitive impairment significantly improved their "mental focus" without taking a single drug. Instead, researchers found that the benefits of green tea extract helped improve memory.

For the study, Korean scientists recruited 90 men and women with mild cognitive impairment. They divided the volunteers into two groups. One group received a placebo and the other group received 1,680 mg of green tea extract with L-theanine. (According to NutraIngredients USA, L-theanine "is an amino acid found in tea leaves thought to reduce stress, promote relaxation, and improve the quality of sleep.")

The volunteers followed this regimen for 16 weeks. Then, they took a battery of tests. The green tea group showed "significant" improvement in memory and recall. Plus, 24 volunteers took EEG scans of their brains. Again, the green tea drinkers showed improvements in specific areas of the brain associated with mental alertness. (I‘d also throw some ginkgo biloba and phosphatidylserine in there, but that‘s another story.)

Bottom line?

Even if you don‘t have mild cognitive impairment, the benefits of green tea extract with L-theanine are significant for cognition. Plus, you may want to look back at my Guide to Good Health from last year. I talked about one antioxidant proven to slash your Alzheimer‘s risk by a whopping 54 percent.