Understanding Hormones

Hormones are silent drivers of behavior and personality; their molecular fingerprints are on everything from attraction to appetite. New parents are slammed with hormones, as is the rookie player on a sports team. And the endocrine system is so complex that the same chemical may behave radically differently from person to person.

Recent posts on Hormones

Does Testosterone Really Just Make Men Aggressive?

The conventional wisdom about testosterone is that it drives aggressiveness and competition. But new research reveals that social rank is also important.
Wellcome Images, used with permission

What We Don't Know about Egg Donation

Egg donation sounds like a good money-maker, but are dangers lurking?

Your Biases And Beliefs Are Impacting Your Decision-Making

A line must be drawn when the beliefs of one person or a group of people harm another person or group of people.

Like Us, They Kill and Consume. But Could They Save Us?

By Gayil Nalls Ph.D. on June 29, 2017 in Sensoria
Like humans, ants are eusocial and chemical communicators. However, we are just discovering their unique abilities that have cared for the planet for millennia.

Testosterone on the Brain

A study found that testosterone boosts impulsive thinking. What's the deal?

Stabilize Your Mood with Food

By Georgia Ede MD on June 28, 2017 in Diagnosis: Diet
Reclaim your emotional health and happiness without medications

The Relationship Between Waist-Hip Ratio and Fertility

In women, a low waist-hip ratio correlates with health, fertility, and attractiveness. However, a new study reveals that it may also distinguish between past and future fertility.
Dexter & Ellie credit: Randi Hutter Epstein

Does Your Child Need Growth Hormone?

New guidelines help doctors, parents, and patients decide.

Is It ADHD or a Thyroid Disorder?

Do you have ADHD or a thyroid disorder? Symptoms can be very similar. There's also a chance that you can have ADHD and thyroid issues at the same time.

Why Do We Struggle to Express Affection?

New research shows that low self-esteem can cause us to underestimate the benefits of showing affection and gratitude to our loved ones.

How the Brain Determines Sexuality

It has been known for a long time that early exposure to testosterone has a powerful influence on later sexuality. Now we are beginning to understand how this might come about.

Can Contraceptives Affect the Health of Future Children?

Children born to mothers who were on the pill while meeting their children's father are more infection-prone

Tips for Spring Cleaning

Cleaning up the stress mess is vital. Long-term, ongoing stress is bad for your physical and emotional health.

How to Cope With Premenstrual Anxiety

By Alice Boyes Ph.D. on May 02, 2017 in In Practice
Practical tips for coping with your emotions before and during your period.

Time for a Better Approach to Alzheimer’s Treatments

Alzheimer’s can be prevented and mild cognitive impairment can be reversed by addressing these factors in at-risk individuals. Science has moved past the “one-pill-for-every-ill”.

Going, Going, Gone? Human Sperm Counts Are Plunging

By Robert D. Martin Ph.D. on April 20, 2017 in How We Do It
Accumulated evidence confirms that human sperm counts have fallen markedly in industrialized countries since the 1930s. Male fertility and reproductive health are threatened.

Are the Hormones of Couples in Sync?

By Darby Saxbe Ph.D. on April 17, 2017 in Home Base
Couples can get under each others' skin, literally. Partners appear to synchronize their stress and reproductive hormone levels over time.

Estrogen Promise

By Robert J King Ph.D. on April 11, 2017 in Hive Mind
Have the rumors of the death of testosterone been somewhat exaggerated? In a word: Yes.

When Disastrous Thoughts Start Playing Games With Us

“My disastrous thinking is already playing games with me. My mind wanders to the scariest thoughts possible about what could happen on the flight."

How Do EpiPens Work?

EpiPen has been in the news in recent months for its soaring prices. But how do they work, exactly?
Randi Hutter Epstein

Is it Time to Replace the Heart as the Symbol of Love?

Is it time to replace the heart as the symbol of love?

From Stress to Genes, Baboons to Hormones

By Marty Nemko Ph.D. on February 04, 2017 in How To Do Life
An Interview with Robert Sapolsky

Dining on Leftovers: Do Women Lose by Not Eating Afterbirth?

By Robert D. Martin Ph.D. on January 16, 2017 in How We Do It
Unlike all other primates and most other mammals, human mothers do not usually devour the placenta after birth. Are they missing out on important benefits because of this?

How Feelings Are Controlled When Flying

By Tom Bunn L.C.S.W. on January 11, 2017 in Conquer Fear Of Flying
Since cognition collapses when stress hormones rise too high, cognitive strategies fail when turbulence bombards fearful fliers with stress hormones.
ZF foto at big stock.com

Estrogen, Progesterone, Your Genes and Mood

By Susan Noonan MD on January 08, 2017 in View From the Mist
Researchers found a biologic link between your genes and PMDD (premenstrual dysphoric disorder)

Don't Let the Swag Throw Off Your Swagger

By Gayil Nalls Ph.D. on January 06, 2017 in Sensoria
Hotel Amenities...why pay for them when they’re free? Read the ingredients (if you can find them) before you decide.
W. R. Klemm

Thwart Stress Effects of Memory

By William R. Klemm Ph.D. on December 29, 2016 in Memory Medic
Stress impairs memory. Here is what you can do about it.

Mindfulness, Yoga, Breathing: Helpful, but Not in Turbulence

By Tom Bunn L.C.S.W. on December 22, 2016 in Conquer Fear Of Flying
In this holiday season, articles are showing up on the web with tips for fearful fliers, Though intended to be helpful, inadequate advise sets people up for failure.

How Testosterone Affects What Men Find Attractive

By Robert Burriss Ph.D. on December 21, 2016 in Attraction, Evolved
Testosterone, the male hormone, has well-known effects on muscle growth and competitiveness. But can it also affect how men perceive women's faces?

Hormones and Brain Regions Behind Eye Contact and Empathy

Clues to the hormonal and brain correlates of eye contact and empathy have been provided by studies of people with autistic symptoms.