How Exercise Reduces Risk for Dementia
A recent study of 62,286 participants found that even a low amount of light-intensity activity is associated with reduced risk of dementia in older adults. Almost 50 percent of North Americans over 85, and 13 percent of those over 65, suffer from dementia.
Waylon Jennings’ Years of Pain
Twenty years ago this week we lost Waylon Jennings, one of the all-time great voices of country music. Jennings was a singer and songwriter who rose from poverty to great wealth and fame, with 54 albums and 96 singles listed among the top sellers between 1966 and 2002. He gave concerts and recorded with many of the most popular artists of his time including Willie Nelson, Hank Williams, Johnny Cash, Bobby Bare, Kris Kristofferson and Mel Tillis.
Low Vitamin D Increases Risks for Heart Attacks and Severe COVID-19
Recent studies show that having low levels of vitamin D is associated with increased risk for high blood pressure, heart disease, and severe consequences of COVID-19. Researchers in Australia collected data prospectively from 295,788 participants, and found that having low blood levels of vitamin D is associated with increased risk for high blood pressure and heart disease. (Normal blood levels of hydroxy-vitamin D are considered to be above 30 ng/mL).
Just a Little Exercise Every Day Could Prevent 110,000 Deaths Per Year
A new study from the National Institutes of Health (NIH) estimates that approximately 110,000 U.S. deaths could be prevented each year if adults over 40 added 10 minutes of daily physical activity to their normal routines (JAMA Internal Medicine, Jan 24. 2022). For this study 4840 adults, 40-85 years old, wore an accelerometer for seven days and were followed for 9-12 years. Increasing moderate to vigorous activity by 10 minutes/day was associated with a 6.9 percent decrease in date rate.
The Latest on COVID-19: Archive
This post contains older entries in my summaries of research on COVID-19 vaccinations and other aspects of the epidemic since it began in late 2019. Newer entries can be found in the main post titled The Latest on COVID-19.
Meat Loaf: COVID-19 and Immune Defects
Meat Loaf was a singer who won a Grammy award for the Best Solo Rock Vocal Performance in the country for the song “I’d Do Anything for Love,” went on more than 30 tours to sell his records, and had three “Bat Out of Hell” albums that sold more than 65 million copies. He also appeared in more than 50 movies including Fight Club, The Rocky Horror Picture Show, and Wayne’s World.
How We Learned That Lactic Acid Is Good For You
In the 1920s, experiments suggested that the accumulation of lactate acid in the bloodstream interfered with a person’s ability to exercise by causing muscles to stop contracting. However, Carl and Gerty Cori won the 1947 Nobel Prize for discovering the “Cori Cycle,” in which lactic acid produced by reduced oxygen levels from intense exercise may be good for exercisers when it travels from muscles to the liver, where lactic acid is converted to the sugar, glucose, to be used by muscles to supply extra energy
Saturated Fats May Not Be the Culprit in Meats or Milk
Studies on meat from mammals and processed meats continue to show increased risk for heart attacks and certain cancers. The largest review ever of the prospective studies, including thirteen cohort studies involving over 1.4 million people and followed for up to 30 years, found that:
*Each 50 g/day higher intake of processed meat (e.g. bacon, ham, and sausages) increased the risk of coronary heart disease by 18 percent
Sidney Poitier: Heart Failure, Dementia and Prostate Cancer
Sidney Poitier was the first African-American to win an Academy Award for Best Actor, and his portrayal of real heroes helped to open the door for Black actors in the film industry. He received two Golden Globe Awards, a Grammy Award for Best Spoken Word Album, the Screen Actors Guild Life Achievement Award, and the BAFTA Fellowship for outstanding lifetime achievement in film. He appeared in many top movies including The Defiant One, To Sir, With Love, In the Heat of the Night, Guess Who’s Coming to Dinner, and A Raisin in the Sun.
How Much Water Should You Drink Each Day?
Most people do not need to keep track of how much fluid they take in. The average person takes in 6-8 glasses of liquids each day without even thinking about it, just by following their own thirst sensations. They meet almost 80 percent of their needs for water by drinking anything liquid and get the remaining 20 percent from the food that they eat.