Are there cognitive benefits to brushing teeth with the opposite hand?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Switching hands to brush your teeth may stimulate new neural pathways and encourage your brain to work in unfamiliar ways. However, the cognitive benefits of this simple habit change remain largely anecdotal, and scientific evidence supporting long-term brain improvements is limited.

If you've noticed changes in coordination, memory, or focus, don't guess what's behind them. Take a free, instant, online symptom check to better understand your health and confidently plan your next steps.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Discover likely causes of one-handed brushing benefits See if your brushing issue needs care Find out what could explain brushing difficulty Find OTC options for hand coordination issues Find a doctor for hand coordination concerns Understand home remedies for brushing hand weakness Learn if this could signal a nerve issue

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Explanation

Using your non-dominant hand for tasks like brushing your teeth can make your brain think differently. This is because it challenges your brain to focus more and use different parts.

Hand Use and Brain Activity: When you use your non-dominant hand, your brain has to work harder, which might help with attention and memory. However, the exact benefits are not well understood.
Switching Hands: Studies suggest that changing which hand you use can affect how your brain processes information, but the long-term benefits are unclear.

While there might be some benefits, they are not guaranteed. If you're experiencing cognitive concerns or want to understand your brain health better, you can take a free AI symptom checker test to learn more about your symptoms!

(References)

Shioiri S, Sasada T, & Nishikawa R. (2022). Visual attention around a hand location localized by .... Cerebral Cortex Communications, 8867302.
Klöppel S, Vongerichten A, van Eimeren T, Frackowiak RS, & Siebner HR. (2007). Can Left-Handedness be Switched? Insights from an Early .... The Journal of Neuroscience, 6672868.
Edlin JM, Carris EK, & Lyle KB. (2013). Memory for Hand-Use Depends on Consistency .... Frontiers in Human Neuroscience, 3762217.

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