RegenESlim Appetite Control Capsules voluntarily recalled due to the presence of DMAA.

FDA warns consumers about caffeine powder. 

FDA advises consumers to stop using any supplement products labeled as OxyElite Pro or VERSA-1. Please see the following advisories: FDA -10/08/13, FDA - 10/11/13 and CDC - 10/08/13.

OPSS Hompage Button tall

Natural Medicines Homepage Button tall


New article on reporting side effects of supplements
Just published in The New England Journal of Medicine: A recent article brings up dietary supplement issues you need to be aware of and discusses how dietary supplement side effects could be monitored better. A PDF of the April 3rd article is available free online.

3rd International Congress on Soldiers’ Physical Performance
August 18-21, 2014
The ICSPP delivers innovative scientific programming on soldiers’ physical performance with experts from around the world.

DMAA list updated for April 2014

Fueling Performance Photo Campaign
Share photos of how you fuel your performance and be featured on our Facebook page!

Dietary supplement module
Earn continuing education credits (if eligible) for this two-hour online module.

Operation LiveWell

Performance Triad


HPRC's human performance optimization (HPO) website is for U.S. Warfighters, their families, and those in the field of HPO who support them. The goal is Total Force Fitness: Warfighters optimized to carry out their mission as safely and effectively as possible.

You are here: Home / Environment / Questions from the Field

Questions from the Field

Articles researched and written by HPRC on performance in challenging environments

Altitude imgThese articles are researched and written by HPRC staff to answer questions about performance in challenging environments.

A pain in the neck—causes in helicopter and fighter pilots
Chronic and acute neck pain among pilots can affect the readiness and effectiveness of service men and women who take to the skies on a regular basis. Find out what is being done about the increasing occurrence of neck pain among military pilots of helicopters and fighter jets.
The future of body armor
Carrying heavy loads, notably body armor and equipment, is taking a toll on Warfighters. A recent report examines the issues related to reducing body armor weight while preserving safety.
Preventing non-combat injuries is a must!
Vast numbers of Warfighters remain non-deployable after being sent home early with non-combat orthopedic injuries. Commanders and researchers in the military are exploring preventive measures.
What IS "heat illness"?
Heat illness can vary from minor symptoms to life threatening conditions. Know the progression of signs and symptoms to prevent serious injury when exercising or performing in hot environments.
Short-Duration Altitude Acclimatization
The effects of short-term altitude acclimatization are varied and include both cognitive and psychomotor components.
High-Altitude Training Masks
Commercial devices are available that purportedly help a person acclimatize to high altitude while they are still training at normal atmospheric pressure, but their effectiveness is questionable.
Intermittent Normobaric-Hypoxia Exposure Conditioning Program
Commercially-available normobaric hypoxic devices simulate altitude. Are they useful for improving health and performance at high altitudes?
How can Warfighters prevent and manage altitude illness?
It is commonly believed that physical fitness can prevent acute mountain sickness, but this is a myth.
How can heat acclimatization prevent heat illness?
Heat-related injuries are significant threats to the health and operational effectiveness of military members and their units.
EPO for altitude acclimitization
A look at the use of exogenous erythropoietin (EPO) for faster altitude acclimatization.