Eating dark chocolate enhances people's memory, immunity: study

Updated 2018-04-25 09:50:02 Xinhua

A new research showed that consuming dark chocolate with a high concentration of cacao had positive effects on stress levels, inflammation, mood, memory and immunity.

Presented on Tuesday at the ongoing five-day Experimental Biology 2018 meeting in San Diego, the United States, two studies revealed for the first time the impact of large amounts of cacao in doses as small as a regular-sized chocolate bar in humans over short or long periods of time.

"These studies show us that the higher the concentration of cacao, the more positive the impact on cognition, memory, mood, immunity and other beneficial effects," said Lee S. Berk, a researcher in psychoneuroimmunology and food science from Loma Linda University and principal investigator on both studies.

They focused on the impact of 70 percent cacao chocolate consumption on human immune and dendritic cell gene expression, with focus on pro- and anti-inflammatory cytokines. Cacao is a major source of flavonoids.

This study assessed the electroencephalography (EEG) response to consuming 48 gram of dark chocolate (70 percent cacao) after an acute period of time (30 minutes) and after a chronic period of time (120 minutes), on modulating brain frequencies 0-40Hz, specifically beneficial gamma frequency (25-40Hz).

Study findings showed that cacao consumption up-regulated multiple intracellular signaling pathways involved in T-cell activation, cellular immune response and genes involved in neural signaling and sensory perception, the latter potentially associated with the phenomena of brain hyperplasticity.

Berk said the studies, however, require further investigation, specifically to determine the significance of these effects for immune cells and the brain in larger study populations.

According to Berk, further research is in progress to elaborate on the mechanisms that may be involved in the cause-and-effect brain-behavior relationship with cacao at this high concentration.

Also in the News

Nicole Kidman Recalls Oscar Glory: Loneliest Time
Showbiz2016/06/16 13:58October 16 2018 18:13:11

Nicole Kidman Recalls Oscar Glory: Loneliest Time

Attending Shanghai International Film Festival, Nicole Kidman talks about her role in "Grace of Monaco".

Labor Day Travel Peak Starts
Also in the News2014/05/01 12:16October 16 2018 18:13:11

Labor Day Travel Peak Starts

Johnny Depp Delivers a Speech 'Evolve the Future' in 'Transcendence'
Also in the News2014/04/18 13:18October 16 2018 18:13:11

Johnny Depp Delivers a Speech 'Evolve the Future' in 'Transcendence'

Hollywood star Johnny Depp's speech in the upcoming new film "Transcendence" has been disclosed on Friday, April 11th.

News:
China World Business Sports Showbiz Audio
Video:
C4 My Chinese Life The Sound Stage China Revealed Showbiz Video Travel Video
Photos:
China World Fun Travel Entertainment Sports
Travel:
Beijing Shanghai Guangzhou
Lifestyle:
Live Music Opera & Classical Movies Traditional Shows Exhibitions
Learn Chinese:
Chinese Studio Living Chinese Everyday Chinese Just For Fun Chinese Culture Buzzwords