Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

J-P. That's Y-A-K-U-L-T dot-C-O-J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

Memory loss and forgetfulness are common warning signs for dementia,

but a dulling of the senses also appears to be associated with the disease.

Smell is definitely the strongest one we found, but it does seem like it's not just smelled.

Willa Brenowitz, an epidemiologist at the University of California, San Francisco.

Her team studied cognitive decline in 1,800 adults from the Health, Aging, and Body Composition

Study, which tracked the health and mental function of older adults over a 17-year period.

During this study, the subjects completed sensory tests, including hearing,

smell, touch, and vision. Brenowitz's team took the results of those tests and then compared

the adult's overall sensory abilities to their mental function. And the results?

Those with better function had a lower risk of dementia and with worse multiple sensory function, they had higher risk of

dementia.

A decline in smell in particular had the strongest link to dementia.

The results are in the Journal of the Alzheimer's Association, Alzheimer's and dementia.

The scientists were just studying correlations here, but Brenowitz says if they can figure out

how well multisensory

decline predicts dementia risk, it might give doctors another tool to screen for the disease.

...