Important Announcements

Nondiscrimination Policy Update

Boston Medical Center Health System complies with applicable Federal civil rights laws and does not discriminate on the basis of age, race, color, national origin (including limited English proficiency and primary language), religion, culture, physical or mental disabilities, socioeconomic status, sex, sexual orientation and gender identity and/or expression. BMCHS provides free aids and services to people with disabilities and free language services to people whose primary language is not English.

To read our full Nondiscrimination Statement, click here.

Circadian Rhythm Disorders


Your circadian rhythm is your "internal clock," which tells you when it's time to sleep or be awake. If your circadian rhythm is out of sync with your environment, it might impact your daily life and cause daytime tiredness, anxiety, insomnia, and problems with memory.

The types of circadian rhythm disorders are:

  • Advanced sleep-wake phase disorder, when you fall asleep in the early evening
  • Delayed sleep-wake phase disorder, when you fall asleep very late at night
  • Irregular sleep-wake rhythm disorder, where you have several short periods of sleep and being awake
  • Non-24-hour sleep-wake rhythm disorder, where your circadian rhythm is not aligned to the 24-hour day

If you have one of these disorders, your doctor will likely recommend a combination of healthy lifestyle changes and good sleep habits, light therapy, and medications such as melatonin. 

Departments and Programs Who Treat This Condition

department

Sleep Disorders Clinic

The American Academy of Sleep Medicine-accredited Sleep Disorders Center at Boston Medical Center provides comprehensive diagnosis and treatment services for individuals with a fu…
Sleep Disorders Clinic
department

Neurology

The Neurology Department offers a full spectrum of neurological care for all neurological disorders, from epilepsy to headaches to Alzheimer’s disease. Our robust research program…
Neurology