Proper Perspectives

Evidence-backed perspectives on the science of sleep to help you live well day in and day out.

How To Know If You Have Insomnia

What is chronic insomnia, who is at the highest risk, how it's diagnosed, what the treatment options are, and more.

Sep. 06, 2022

By Jacqueline Parisi & Michael T. Smith, PhD, CBSM, DBSM

The State Of Sleep Science: Statistics + Clinical Studies [2022]

Stats on sleep hygiene, sleep aids, the health implications of insufficient and poor quality sleep, factors that impact sleep, and more.

May. 23, 2022

By Kamiu Lee, Alice D. Hirschel & Allison Siebern, PhD, CBSM

How Do Sleep Trackers Work + Are They Accurate?

Interested in tracking your sleep but not sure where to start? We’ve got you covered with a full run-down of the five most popular sleep tracking devices, many of which double as fitness trackers/activity trackers.

Apr. 26, 2022

By Jacqueline Parisi & Allison Siebern, PhD, CBSM

Is It Okay For Your Dog To Sleep In Your Bed?

Sleeping dogs with sleeping humans: yes or no? These are the benefits and trade-offs to be aware of.

Apr. 19, 2022

By Jacqueline Parisi & Allison Siebern, PhD, CBSM

What’s The Best Time To Exercise For Quality Sleep?

Despite the consensus that exercise = good sleep, there are still lingering questions around what time of day is best to exercise. Here's what the science says.

Mar. 01, 2022

By Jacqueline Parisi & Allison Siebern, PhD, CBSM

How Anemia + Iron Supplements Affect Sleep

The science behind how low iron levels affect sleep and overall wellness—and how supplementation can help.

Feb. 15, 2022

By Jacqueline Parisi & Adam Perlman, MD, MPH

Are Sleep Problems Hereditary?

Yes, our genes can influence our sleep problems. But that doesn’t mean we’re powerless or predestined for poor sleep.

Jan. 18, 2022

By Jacqueline Parisi, Lauren Hoogs, NBC-HWC & Kelly O'Brien, NBC-HWC

How Long To Wait After Eating + Before Sleeping

When should my last meal be? Do I need to stop eating earlier if I have a big meal for dinner? We're answering it all.

Jan. 04, 2022

By Jacqueline Parisi & Allison Siebern, PhD, CBSM

Sleep Quality vs Quantity: Which Is More Important?

Optimize your sleep—and overall health and well-being—with better quality, healthy sleep.

Dec. 28, 2021

By Jacqueline Parisi & Allison Siebern, PhD, CBSM

The FDA Regulates Supplement Facts Differently Than Nutrition Facts. Here’s Why.

Label approval is not required to import or distribute a dietary supplement. And while the FDA still keeps a close eye on them, the responsibility is on the consumer to choose wisely.

Dec. 23, 2021

By Jacqueline Parisi & Alice D. Hirschel

FAQ: What Does “Normal” Sleep Look Like?

Normal sleep cycles, oxygen levels, sleeping heart rate, amount of deep sleep, amount of REM sleep, amount of light sleep, total amount of sleep, and more.

Dec. 21, 2021

By Jacqueline Parisi, Kelly O'Brien, NBC-HWC & Lauren Hoogs, NBC-HWC

What Stage Of Sleep Do You Dream: REM or Deep?

Frequently asked questions around dreaming, including when it happens, why it happens, and how it impacts sleep quality.

Nov. 02, 2021

By Allison Siebern, PhD, CBSM

How Much Sleep Do You Really Need?

Is six hours enough sleep? What constitutes “sleep deprivation”? Will napping impact my sleep schedule? We’re answering it all.

Sep. 28, 2021

By Allison Siebern, PhD, CBSM

Sleep + Athletic Performance: What’s The Connection?

New research on the importance of sleep quality, amount of sleep, + effects of jet lag on elite athletes.

Jul. 20, 2021

By Adam Perlman, MD, MPH

Sleep, Nutrition, Or Exercise: What’s Most Important For Weight Loss?

We sat down PHD Weight Loss founder, Ashley Lucas, and her husband, Doug, to better understand the impact of sleep, exercise, + nutrition on weight.

Jun. 22, 2021

By Jacqueline Parisi, Ashley Lucas, PhD, RD & Doug Lucas, DO

6 Ways Sleep Deprivation Affects Work Performance

Discover how poor sleep affects productivity, patience, focus, decision making, creativity, + memory.

Jun. 08, 2021

By Allison Siebern, PhD, CBSM

Sleep Deprivation + Men’s Health: What’s The Connection?

The science behind how sleep affects health for men, from athletic performance to testosterone levels, erectile dysfunction to sleep apnea.

Jun. 01, 2021

By Adam Perlman, MD, MPH

When To See A Sleep Specialist: 6 Signs + Symptoms

Understand the potential causes of fatigue and Excessive Daytime Sleepiness, which are signs that it’s time to consult a sleep specialist.

Apr. 27, 2021

By Michael T. Smith, PhD, CBSM, DBSM

7 Reasons You May Be Tired Even Though It Feels Like You Slept Well

With something as complex as sleep, there’s rarely a singular solution. But these common reasons are a start.

Apr. 13, 2021

By Allison Siebern, PhD, CBSM & Jacqueline Parisi

The Relationship Between Sleep + Memory

Discover how the consolidation, recall, + reactivation of memories is affected by sleep—plus how it impacts future Alzheimer's risk.

Mar. 30, 2021

By Adam Perlman, MD, MPH

What's New In Sleep Science This Month: March 2021

New research on the psychological impact of COVID on sleep quality, plus the role of sleep in memory consolidation + dementia risk.

Mar. 11, 2021

By Jacqueline Parisi & Adam Perlman, MD, MPH

A Guide To The 4 Stages Of Sleep (REM + NREM)

What happens in each, why they’re important, and factors that influence them.

Mar. 09, 2021

By Allison Siebern, PhD, CBSM

Dr. Jessica Shepherd Shares The Most Common Sleep Myths She Encounters

Hear her thoughts on the state of the sleep industry, the biggest sleep myths she encounters, + where she hopes sleep wellness will be in the next 5-10 years.

Mar. 04, 2021

By Jacqueline Parisi

The Proper Guide To Circadian Rhythms

The science-backed specifics of how your body's internal clock works + why regulating it is important for your long-term sleep health.

Feb. 25, 2021

By Allison Siebern, PhD, CBSM

Sleep Problems During Menopause: Causes + Treatment

The science behind why menopause is so impactful on sleep—and what you can do about it.

Feb. 23, 2021

By Allison Siebern, PhD, CBSM

How Stress Affects Your Sleep

Discover how exactly stress impacts sleep quality, in addition to tips, strategies, + solutions to help you manage it.

Feb. 16, 2021

By Allison Siebern, PhD, CBSM