Sleep: The Ultimate Recovery Tool

By Elizabeth Piselli, DPM  |  Board Certified Podiatrist, Rockville Centre, NY

"What a robust people, what a nation of thinkers we might be, if we would only lay ourselves on the shelf occasionally and renew our edges!"— Mark Twain, Rest

One of the most important lessons I ever learned about recovery didn't come from medical school or residency. It came from a college class called Sleep and Dreams.

The course was taught by William C. Dement — widely considered the father of modern sleep medicine. It turned out to be one of the most eye-opening academic experiences of my life.

Dr. Dement believed so strongly in the importance of sleep that he did something unusual: he offered extra credit if students fell asleep in class.

Yes, you read that correctly.

His reasoning was simple. If you were tired enough to fall asleep during a lecture, your body truly needed rest. Rather than penalizing students for it, he saw it as evidence of an important biological need being met.

I found the class so fascinating that I couldn't fall asleep even if I tried. While other students may have drifted off hoping to earn extra credit, I was wide awake, absorbing every study, story, and insight he shared.

One phrase from that class has stayed with me ever since:

"Drowsiness is red alert."

In other words, if you feel sleepy, your body is already sounding an alarm. Sleepiness is not a minor inconvenience to be managed with another cup of coffee. It is a biological signal that your brain and body need recovery.

There is no true substitute for sleep.

Why Sleep Matters More Than We Realize

In our culture, lack of sleep is often worn like a badge of honor. People brag about how little they sleep or how much they can push through fatigue. We admire productivity and toughness — and many believe they can simply gut it out.

The science tells a very different story.

Sleep is when the body performs many of its most critical maintenance functions. During sleep, tissues repair themselves, inflammation decreases, hormones rebalance, and the brain consolidates memory and learning. Immune function improves. Muscles recover. The nervous system resets.

When sleep is insufficient, every system in the body feels it.

Inadequate sleep can impair immune function, making you more vulnerable to illness. It disrupts hormones that regulate appetite and metabolism. It increases systemic inflammation — a factor in many chronic conditions. And critically, it slows tissue repair, which matters enormously when you are recovering from an injury involving muscles, tendons, ligaments, or bones.¹

What This Means for Foot and Ankle Recovery

For patients managing foot and ankle pain, sleep becomes even more important. Healing tissues depend on energy and cellular repair processes that occur most efficiently during deep sleep. Growth hormone — the body's primary tissue repair signal — is released predominantly during slow-wave sleep. When that sleep is cut short or disrupted, recovery slows.

This is something I think about often when I see patients who are frustrated by slow progress. They are doing everything right — resting, stretching, wearing their orthotics — but still not improving as quickly as expected. One of the first questions I ask is: how are you sleeping?

The answer is often revealing.

If you are not sleeping well, your body cannot recover as well as it should. It is that straightforward.

Simple Steps to Protect Your Sleep

You don't need a perfect sleep routine to make meaningful improvements. Start with the basics:

Keep a consistent sleep schedule — going to bed and waking up at the same time each day, even on weekends, helps regulate your body's internal clock.

Prioritize darkness and cool temperatures in your bedroom. Limit screens in the hour before bed, as blue light suppresses melatonin production. And be honest about your caffeine intake — its effects last longer than most people realize.

If you are dealing with pain that interrupts your sleep, that is worth discussing at your next appointment. Unmanaged pain at night is both a quality-of-life issue and a recovery barrier — and there are often options we haven't yet explored together.

Rest Is Not Weakness

As a former athlete, I spent years in environments where rest was treated as something to be earned rather than prioritized. That mindset is hard to shake. But the evidence is clear, and Dr. Dement's lesson has stayed with me through every year of practice.

Rest is not laziness. It is physiology. And for anyone working to heal — whether from a stress fracture, plantar fasciitis, a post-surgical recovery, or simply the accumulated wear of an active life — sleep is not optional. It is the foundation everything else is built on.

Treat it accordingly.

If foot or ankle pain is affecting your sleep or slowing your recovery, we'd love to help. Call us at (516) 344-5553 or visit balance-podiatry.com to schedule an appointment.

About Dr. Elizabeth Piselli, DPM Dr. Elizabeth Piselli is a Board Certified Podiatrist and founder of Balance Podiatry in Rockville Centre, NY. A former Division I lacrosse player at Stanford University, she brings a sports medicine perspective to the diagnosis and treatment of foot and ankle conditions, serving patients across Long Island.

¹ Walker, M. (2017). Why We Sleep: Unlocking the Power of Sleep and Dreams. Scribner. // Besedovsky, L., Lange, T., & Born, J. (2012). Sleep and immune function. Pflügers Archiv – European Journal of Physiology, 463(1), 121–137.