Summer is the hottest of the four seasons. At the summer solstice, which occurs on June 21st in the Northern Hemisphere and December 22nd in the Southern Hemisphere (when it is summer in the Northern Hemisphere, it is winter in the Southern Hemisphere and vice versa), the days are longest and the nights are shortest. Summer is a great time to spend time outdoors and practice a healthy lifestyle. There are plenty of chances to eat fresh fruits and vegetables, get some sun, and get in shape, whether it be by playing a sport, exercising or just working around the yard.
Vitamin D Regulates Genes Associated with Susceptibility to Autoimmune Diseases
Vitamin D is, at this point, probably one of the trendiest vitamins around. Everyone suddenly seems to be getting their vitamin D level tested (specifically vitamin D3 or 25(OH)D, also called calcidiol) and, when levels are found to be deficient, taking supplements. In November 2010, the Institute of Medicine tripled its daily recommendations for vitamin D from 200 International Units to 600 [1]. Severe vitamin D deficiency causes rickets, which leads to a softening and weakening of the bones, so milk has been fortified with vitamin D to prevent rickets. Less dramatic vitamin D deficiency has been implicated in ailments ranging from cancer to heart disease to schizophrenia to autoimmune diseases to colds and the flu. But how does vitamin D act in the body — how can it contribute to so many different physiological processes?
Vitamin C Improves the Mood of Acutely Hospitalized Patients
According to new research, supplementation with vitamin C could improve the emotional state of hospitalized patients [1]. The study, published in the journal Nutrition, demonstrates that increasing vitamin C levels in acutely hospitalized patients results in a rapid, statistically and clinically significant improvement in mood state.
Sixty percent of patients in hospitals have extremely low levels of vitamin C. Their plasma levels are less than half that of normal levels; one in five patients have levels so low that they have scurvy, a condition characterized by general weakness, anemia, gum disease and skin hemorrhages as a result of vitamin C deficiency. But rather than giving them sauerkraut, like eighteenth century sailors received to combat scurvy on long voyages, Dr. John Hoffer at the Jewish General Hospital in Montreal gave them vitamin C supplements. He found that their moods improved significantly.
Health Highlights – August 7th, 2009
Health Highlights is a biweekly summary of particularly interesting articles from credible sources of health and medical information that we follow & read. For a complete list of recommeded sources, see our links page.
- What is Success Or Failure or the Philosophy of Success | Dr Shock MD PhD
Do you ever reflect on your career? It may be easier now than ever before to make a good living, but it's harder to stay calm and free of career anxiety. Dr. Walter van den Broek highlights a TED video on the philosophy of success.
- Vitamin D Deficiency is Common in US Children, Associated with Cardiovascular Risks | Clinical Cases and Images
Dr. Ves Dimov highlights a recent study that finds that vitamin D deficiency is common in U.S. children and is associated with adverse cardiovascular risks.
- Science-Based Medicine 101: How To Establish A Source’s Credibility | Science-Based Medicine
How do you evaluate the credibility of a health news report? Dr. Val recommends three basic steps.
- 10 + 1 PubMed Tips for Residents (and their Instructors) | Laika’s MedLibLog
As a clinical librarian, Jacqueline's expertise is searching. She offers 10 tips – applicable to anyone using PubMed – for searching the database for medical information, including how to save your search and create alerts for new research articles.
- Over Diagnosis of Breast Cancers | Suture for a Living
Breast cancer screening is done to detect and treat lethal cancers early. Dr. Ramona Bates describes a recent BMJ study that estimates more than half of breast cancers are over-diagnosed.
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