
Effects of sleep deprivation

Progressive relaxation techniques for insomnia

Prescription insomnia medications: What to know

How to test for sleep apnea: At home or in a lab

How sleep deprivation can harm your health

Extreme heat endangers older adults: What to know and do

Want to cool down? 14 ideas to try

What is a PSA test and how is it used?

Blood sugar–friendly fruits if you have diabetes

Gratitude enhances health, brings happiness — and may even lengthen lives
Diagnostic Tests and Medical Procedures
From biopsies to bypass surgery, you'll find information below on more than 110 tests and procedures. Designed to remove anxiety and uncertainty, these concise reports explain the purpose, how to prep, how it's done, the risks, follow-up, and helpful outside links.
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

Effects of sleep deprivation

Progressive relaxation techniques for insomnia

Prescription insomnia medications: What to know

How to test for sleep apnea: At home or in a lab

How sleep deprivation can harm your health

Extreme heat endangers older adults: What to know and do

Want to cool down? 14 ideas to try

What is a PSA test and how is it used?

Blood sugar–friendly fruits if you have diabetes

Gratitude enhances health, brings happiness — and may even lengthen lives
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