Do you hear traffic noise when you sleep? If so, a set of earplugs may be a wise health investment.

Your auditory system is working even when you are asleep. Studies suggest that people who are exposed to sounds while sleeping may experience increases in stress hormones while they slumber. Excessive blood levels of the stress hormone cortisol has been linked to an increased risk of aging and disease.

Excessive stress hormones in the bloodstream may increase the risk of several diseases. Links between the stress hormone cortisol and immune suppression and cardiovascular disease have been established in several studies. Noise is considered a kind of stress, because it alerts the body to activity and a possible need to take action. Keep noise levels low when you sleep or invest in earplugs that help to dull outside sounds.

RealAge Benefit: Taking care of your emotional health and well-being can make your RealAge up to 16 years younger.

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