Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started
My Medicine

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Men's Health

Font Size

Want Success in the Stock Market? Man Up

Study Shows Higher Testosterone in the Morning May Equal Bigger Day Earnings for Financial Traders
WebMD Health News

April 14, 2008 -- Does higher testosterone in the morning lead to higher earnings for the day? According to new research, maybe so, if you are a stockbroker.

Researchers from the University of Cambridge went to the trading floor of a mid-sized financial firm in London to track 17 brokers on the job for eight days.

The aim was to measure both their testosterone and cortisol levels twice a day. All the brokers were men, all were healthy, and all reported not taking any drugs. They also were interviewed each day to make sure they did not receive any outside news that may have affected their hormone levels. Testosterone and cortisol are hormones that work to regulate metabolism and determine mood.

Testosterone Finding

  • Daily testosterone was significantly higher on days when traders made more than their one-month average.
  • On days when the morning testosterone was higher, traders made a "significantly greater" profit.
  • Study authors write that the findings suggest "high morning testosterone predicts greater profitability for the rest of the day."

Testosterone is associated with winning and risk taking.

Study authors John M. Coates and Joe Herbert speculate that if testosterone continues to climb or stays persistently elevated, it could begin to have the opposite effect, for instance creating harmful risk taking, being overly impulsive, or seeking out unhealthy thrills.

The study results appear in the Proceedings of the National Academy of Sciences.

Cortisol Connection

Researchers were surprised by what they found with the traders' cortisol levels. They wanted to see if cortisol levels rose during a stressful day of losses. Cortisol is known as one of the "fight or flight" hormones related to the body's response to stress.

Cortisol levels did not change wildly due to big losses but seemed more connected to the unknown, whether the trader was uncertain about whether he would lose or make money.

Both cortisol and testosterone have receptors in the brain. Researchers believe that as these hormones fluctuate, they may disrupt a trader's decision-making ability.

Today on WebMD

man coughing
Men shouldn’t ignore.
man swinging in hammock
And how to get out it.
shaving tools
On your shaving skills.
muscular man flexing
Four facts that matter.
Food Men 10 Foods Boost Male Health
Thoughtful man sitting on bed
Man taking blood pressure
doctor holding syringe
Condom Quiz
man running
older couple in bed