Since we are entering the warmer weather, I thought it would be worthwhile to consider perspiring, or sweating. We are all going to be doing it. What does it mean to the body?
It is important to stay hydrated and avoid excessive heat during the hot summer months because we lose a lot of body fluid through sweat. But does this mean you should avoid sweating at all costs? Not at all.
People sweat for many reasons such as hot weather, nervousness, a fever, exercise, and being in a sauna. Sweating can dehydrate us, stress us out, or remind us our body is fighting an illness. In contrast, it may invigorate us on a hike or when working out in a gym. Besides, isn’t sweating what you are supposed to do in a sauna anyhow?
Whether they’re serving as snacks at a family reunion or props in a late-night comedy act, watermelons and fun just seem to go together. But how does watermelon hold up health-wise?
Smashingly, you might say.
“I’m definitely impressed by its health benefits,” said Tim Allerton, a postdoctoral researcher at Louisiana State University’s Pennington Biomedical Research Center in Baton Rouge.
It’s a rich source of minerals such as potassium and magnesium. It’s also a good source of vitamins C and A (plus beta carotene, which helps produce vitamin A), and it has fair amounts of vitamins B1, B5 and B6. You get all of that for only 46.5 calories per cup.
Befitting its name, watermelon is about 92% water, which suggests why ancestral watermelons were carried in Africa’s Kalahari Desert as long as 5,000 years ago. This is a treat with a lineage: Modern-looking versions are depicted in ancient Egyptian tombs.
As a senior, I want to stress to you that we seniors are more vulnerable to dehydration than our younger associates.
The hot summer months are upon us, but sweating in the sun is not the only factor that raises risk for dehydration. This potentially dangerous drop in body fluid affects everything from blood pressure to the brain, so knowing the causes, signs, and symptoms of dehydration—as well as how to avoid it—is critical.
Dehydration Basics: Any situation that involves either not taking in enough fluid or losing too much fluid can cause dehydration. “We don’t drink enough if fluids are unavailable, or if we lack an adequate thirst response,” says Roger Fielding, PhD, director and senior scientist at the Nutrition, Exercise Physiology, and Sarcopenia Laboratory at Tufts’ Human Nutrition Research Center on Aging. “We lose fluid through sweat, diarrhea, vomiting, or blood loss. Medications like diuretics (water pills), or medical conditions like uncontrolled diabetes, can also cause too much water to leave the body. These factors, alone or in combination, can lead to dehydration.”
Since the outbreak of COVID-19, rumors and misinformation about the virus seem to be spreading just as quickly, if not more quickly, than the virus itself. In the midst of a pandemic, false information can be dangerous and lead to panic, making it difficult to differentiate between fact and fiction.
Experts with The University of Texas Health Science Center at Houston (UTHealth) weigh in on the most common myths about COVID-19:
MYTH: Vitamin C can help fight against the virus
Vitamin C is an essential vitamin that can help boost the immune system and is found in many fruits and vegetables. However, research shows that for most people, taking vitamin C won’t even fight against the common cold.
“Studies show that vitamin C has no significant benefit in preventing or treating the common cold for most patients, and COVID-19 is not the common cold,” said Joyce Samuel, MD, an associate professor of pediatrics at McGovern Medical School at UTHealth and a pediatric nephrologist with UT Physicians. Continue reading →
I have written about hydration and the importance of water for our life and bodily functions. I thought this infographic put a lot of that info together in one place. I make it a point every morning to start with a glass of warm water. That seems so logical considering that I have taken in no water for the previous 7 to 8 hours.
The idea that if you are thirsty then you are already dehydrated has no basis in fact. The human body is well designed to manage its water needs, and if you drink when you are thirsty, then you are likely getting enough fluids. Goldfarb notes, “Thirst is a highly developed sensation, powerfully motivated. When you’re thirsty, all you want to do is drink. But being thirsty doesn’t mean you are ill at this point or dehydrated to the point that there are consequences.”
Americans drink over 9 billion gallons of bottled water each year, up from 5 billion in 2001. However, most Americans still believe that they go through life chronically dehydrated. At least, that is what we have been led to believe by certain experts and bottled water companies who have suggested that everyone drink eight glasses of water a day for the sake of their health. However, that advice has no basis in scientific evidence, according to Scottish physician Dr. Margaret McCartney, who says that the need to drink that much water to prevent dehydration is “not only nonsense, but is thoroughly debunked nonsense.”
It is easy to find articles all over the Internet on the health benefits of drinking more water. From better skin to weight loss, all manner of health improvements have been attributed to drinking eight glasses of water a day. But according to Dr. Stanley Goldfarb, a…