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While participating in physical activities such as bike riding, dancing, walking and gardening and mentally stimulating activities such as crosswords and reading may reduce the risk of Alzheimer's disease, they may not do so by affecting the underlying markers for the disease, according to a study published online in Neurology®, the medical journal of the American Academy of Neurology.

"While a lifelong history of physical and mental activity may support better memory and thinking performance, this relationship may possibly be separate from any protection against the markers of Alzheimer's disease in the brain," said study author Keith A.

On analyzing blood samples from marathon runners taken immediately after the extreme endurance event, researchers identified markers of sepsis.

The studies - both led by Dr. Ricardo Costa of the Department of Nutrition and Dietetics at Monash - are published in the International Journal of Sports Medicine and Exercise Immunology Reviews.

Blood poisoning, also known as septicemia or sepsis, occurs when immune chemicals leak into the bloodstream, triggering an overactive inflammatory response.

In every country, back pain and depression are among the leading causes of years lived with disability; mental and substance abuse disorders cause one-fifth of disabling conditions

People across the world are living longer but spending more time in ill health as rates of nonfatal diseases and injuries - including diabetes and hearing loss - decline more slowly than death rates, according to a new analysis of 301 diseases and injuries in 188 countries.

Using a measurement known as years lived with disability, or YLDs, researchers from around the world quantified the impact of health problems that impair mobility, hearing, or vision, or cause pain in some way but aren't fatal.

Women who exercise during pregnancy are less likely to have gestational diabetes, and the exercise also helps to reduce maternal weight gain, finds a study published on 3 June 2015 in BJOG: an International Journal of Obstetrics and Gynaecology.

Gestational diabetes is one of the most frequent complications of pregnancy. It is associated with an increased risk of serious disorders such as pre-eclampsia, hypertension, preterm birth, and with induced or caesarean birth. It can have long term effects on the mother including long term impaired glucose tolerance and type 2 diabetes.

Housework and childcare were associated with insufficient sleep

Physical activities, such as walking, as well as aerobics/calisthenics, biking, gardening, golfing, running, weight-lifting, and yoga/Pilates are associated with better sleep habits, compared to no activity, according to a new study from researchers at the Perelman School of Medicine at the University of Pennsylvania. In contrast, the study shows that other types of physical activity - such as household and childcare -- are associated with increased cases of poor sleep habits. The full results of the study (Abstract #0246) will be presented during the poster session on Monday, June 8, at SLEEP 2015, the 29th annual meeting of the Associated Professional Sleep Societies LLC, June 6-10, in Seattle, WA.

The Big Apple is one of the most walkable cities in the nation, providing many opportunities for physical activity, and New Yorkers are more likely to exercise regularly than the average U.S. adult. But they are also sitting far more than what is considered healthy.

According to a new study published by the U.S. Centers for Disease Control and Prevention in its journal Preventing Chronic Disease, the average New York City resident sits more than seven hours a day--greatly exceeding the three hours or more per day that is associated with decreased life expectancy.

In what is the first population-based analysis of data on New Yorkers' sitting patterns, and one of the first such studies nationally, researchers from NYU Langone's Department of Population Health and the NYC Department of Health and Mental Hygiene found significant differences in sitting time among specific demographic groups.

New data from a cluster randomised controlled trial has demonstrated that back pain patients monitored and treated using wearable movement sensors from dorsaVi Ltd (ASX:DVL) had a significant and sustained improvement in pain and functional ability.

Across all primary outcome measures, participants treated with the dorsaVi sensors with biofeedback showed a 35 % to 47 % improvement at 12 months, which were all above the threshold for clinically important difference (>30 % of baseline scores).

The study results were published online in the leading medical journal BMC Musculoskeletal Disorders.

Breaking up long periods of sitting with activity is considered by most experts to be advantageous to the health of workers.

Workers whose jobs are predominantly desk-based should eventually progress to a total of 4 hours standing, advises the panel.

The recommendation comes as part of a set of guidelines, published in the British Journal of Sports Medicine, with the aim to provide guidance to employers and office workers to counteract the health risks that come with long periods of seated office work.

Among patients with acute sciatica caused by a herniated lumbar disk (a condition also known as "acute radiculopathy"), a short course of oral steroids resulted in only modest improvement in function and no significant improvement in pain, according to a study published in the Journal of the American Medical Association.

Acute sciatica, characterized by radiating buttock and leg pain, is most frequently associated with a herniated disk in the lower (lumbar) spine, and occurs in more than one in 10 people sometime in their lives.