From A to ZZZZZ: Dr. Ash Visits TODAY to Launch Sleep Awareness Week

In honor of the National Sleep Foundation's annual Sleep Awareness Week, a seven-day celebration of sleep health kicking off for 2016 on March 6, Carol Ash, D.O., Director of Sleep Medicine for Meridian Health, dropped by TODAY to help answer the question, "What's keeping you awake?"

According to Dr. Ash, upwards of 60 to 80 percent of Americans aren't getting the essential seven hours of sleep per night - the minimum needed to avoid long-term health consequences.

So what is keeping us awake at night? According to Dr. Ash, the answer could be right outside your window.

"There was a study recently done at Stamford, which looked at 16,000 people over eight years," says Dr. Ash. "They found that those living in communities of 500,000 people or more found it much more difficult to get the sleep they need."

So... what's the solution? Watch Dr. Ash's TODAY segment below to find out.

Dr. Ash helps answers the question, "Why am I so tired?"

It's a question we've all asked ourselves: "Why am I so tired?"

On a visit to TODAY earlier this year, Dr. Carol Ash and Julie Bain, Health Director for Ladies Home Journal, offered tips to help provide answers to that question.

Both Ash and Bain agreed that mental fatigue and stress can be one of the biggest causes of daytime sleepiness.

"Stress is a good thing; it helps us overcome challenges," Ash said. "But sustained stress can lead to anxiety and depression."

These types of stress can keep you awake at night - and exhausted during the day.

Ash advises, when stress and anxiety are keeping you up, write it down, and then confide with someone you trust during the day.

Watch the full TODAY segment below.