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  2. Heart rate variability - Wikipedia

    en.wikipedia.org/wiki/Heart_rate_variability

    HRV was also used to assess decision-making skills in a high-risk game and was found to be an index higher sympathetic activation (lower HRV) when making decisions involving risk. [30] HRV can index psychological concepts, such as the ones outlined above, to assess the demand for the situations that people experience.

  3. Adolescent sleep - Wikipedia

    en.wikipedia.org/wiki/Adolescent_Sleep

    The National Sleep Foundation recommends that teenagers (14–17 years) obtain 8 to 10 hours of sleep. [9] Their recommendation further stipulates that less than 7 hours and more than 11 hours of sleep may be harmful.

  4. Sleep efficiency - Wikipedia

    en.wikipedia.org/wiki/Sleep_efficiency

    Sleep efficiency (SE) is the ratio between the time a person spends asleep, and the total time dedicated to sleep (i.e. both sleeping and attempting to fall asleep or fall back asleep). It is given as a percentage. [1] SE of 80% or more is considered normal/healthy with most young healthy adults displaying SE above 90%.

  5. Excessive daytime sleepiness - Wikipedia

    en.wikipedia.org/wiki/Excessive_daytime_sleepiness

    EDS can be a symptom of a number of factors and disorders. Specialists in sleep medicine are trained to diagnose them. Some are: Insufficient quality or quantity of night time sleep [5] Obstructive sleep apnea [6] Misalignments of the body's circadian pacemaker with the environment (e.g., jet lag, shift work, or other circadian rhythm sleep ...

  6. AOL Mail

    mail.aol.com/?icid=aol.com-nav

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  7. How much should you have in your 401(k)? Here's how ... - AOL

    www.aol.com/finance/average-401k-balance-by-age...

    Here's how age groups stack up on average and median 401(k) balances as of 2024: Age. Average account balance. Median account balance. 25 and younger. $7,351. $2,816. 25 to 34. $37,557. $14,933.

  8. This Is the Average Social Security Benefit for Age 75 - AOL

    www.aol.com/finance/average-social-security...

    For 51 million retired Americans, Social Security provides a crucial safety net, distributing $1.5 trillion in benefits. Your primary insurance amount (PIA) is based on the average of your 35 ...

  9. This Is the Average Social Security Benefit for Age 67 - AOL

    www.aol.com/average-social-security-benefit-age...

    The average benefit among all retired workers at age 62 is just $1,298 per month, while the average payment at age 70 is $2,038 per month -- a difference of around $740 per month. Age.