What sleep parameters are affected by beta blockers?

What sleep parameters are affected by beta blockers?

• A. Wakefulness and N1
• B. N2 only
• C. REM density
• D. REM, SWS, TST

Answer: (D)

Beta blockers can alter sleep architecture by dampening the brain activity that promotes REM sleep and by reducing deep sleep, often leading to a shorter overall sleep time. The beta-adrenergic blockade tends to suppress REM, and many individuals also show reduced slow-wave sleep, which can contribute to decreased total sleep time due to more awakenings or lighter sleep. Because these medications can impact multiple stages, the sleep parameters affected include REM, slow-wave sleep, and total sleep time. The other options focus on a single aspect or on REM density specifically, which doesn’t capture the broader changes beta blockers commonly produce.

Beta blockers can alter sleep architecture by dampening the brain activity that promotes REM sleep and by reducing deep sleep, often leading to a shorter overall sleep time. The beta-adrenergic blockade tends to suppress REM, and many individuals also show reduced slow-wave sleep, which can contribute to decreased total sleep time due to more awakenings or lighter sleep. Because these medications can impact multiple stages, the sleep parameters affected include REM, slow-wave sleep, and total sleep time. The other options focus on a single aspect or on REM density specifically, which doesn’t capture the broader changes beta blockers commonly produce.