Fitness1132 articles archived since 1845

How to Train for a Long-Distance Race

Whether it is a full marathon or a 10K, training for a race can have less than desirable consequences if you are not prepared

Humans Evolved to Exercise  

Unlike our ape cousins, humans require high levels of physical activity to be healthy

What Ails a Woman’s Heart

The more we look, the more we find sex differences in cardiovascular disease

How Physical Activity and Gut–Brain Connections Combine to Make Us Healthier  

A Blood Test for the Body’s Clock  

A new way to measure internal time could yield insight into sleep deprivation and disease 

Simple Sugars Wipe Out Beneficial Gut Bugs

Fructose and sucrose can make it all the way to the colon, where they spell a sugary death sentence for beneficial bacteria. Karen Hopkin reports.

Does Weight-Loss Surgery Rewire Gut–Brain Connections?  

Bariatric procedures are revealing new insights into the dialogue between bowel and brain

Simple Genetic Mutation Helped Humans Become Endurance Runners

Mice with the human version of a gene can run for longer without becoming fatigued 

How Exercise Affects Your Brain

Scientists are continuing to showing that everything from the “runner’s high” to the “yogi’s tranquility” can have profound effects on your brain

Can You Have Too Much “Good” (HDL) Cholesterol?

A new study suggests that too much “good” cholesterol may be just as bad as too little. Dr. Sanaz Majd joins Nutrition Diva to sort out what this new research means for our heart health and risks...

Bone Building Needs Bit of Breakdown First

The hormone irisin encourages bone remodeling, in part by first triggering another substance that encourages some bone breakdown.

You Gotta Scratch That Itch

A particular set of brain neurons may be behind registering itch and inducing us to scratch.

How AI Could Help Your Bad Back

Reconciling all data relevant to patient care is beyond any doctor’s brainpower

The 1918 Influenza Pandemic: How Far Have We Come?

We now know the cause of flu—but the universal vaccine and the antiviral drugs we need to stop it still elude us

Heart Rate Variability (HRV): What It Is and How to Improve It

Researchers at Harvard University have gone as far as to say that measuring your Heart Rate Variability is “a visual insight into the most primitive part of your brain”

What Are the Benefits of Drinking Aloe Juice?

Applying aloe vera gel to a burn can help the skin heal more quickly. But many people also advocate drinking the aloe vera juice

A New Connection between the Gut and Brain

A surprising way that diet leads risks of stroke and cognitive impairment

Normal Body Temperature Is Surprisingly Less Than 98.6

Healthy body temps are surprisingly lower

Animals Can Help Us Rediscover Our Nutritional Wisdom

Contemporary foods and cultures inhibit our body’s inborn ability to select nourishing diets

Going Barefoot and 8 Other Ways to Improve Balance

Balance is something we don’t think much about after we learn it (as a child) or start to lose it (as a senior), but balance is crucial to healthy living