How Long Do You Want to Live?

If you could choose, how long do you want to live? To 100, 200, 500 years of age? Perhaps your answer is, it depends—will I be healthy? By the end of this decade, nearly 1 in 5 Americans will be 65 or older. Three out of 4 will have two or more serious health conditions. At least 1 in 4 can expect memory lapses and fuzzy thinking, while 1 in 10 will develop dementia. You’re not part of the generation known as the Boomers? Don’t worry. You’ll age, too.  Aging-Factors that Cause Disease The research is extensive. And unfortunately, there isn’t just one thing that leads to age-related diseases. There are many: inflammation; a metabolism system that doesn’t work right; inactive stem cells; stress-related damage, environmental toxins, and more. These problems of aging cells lead to diseases like heart disease, stroke, diabetes, osteoarthritis, Alzheimer’s disease, Parkinson’s, and cancer. Fortunately, there’s been a “perfect storm” in anti-aging research. All kinds of treatments for age-related illnesses are moving into or already in clinical trials. They aim to make us grow old in better health. If you could grow old in good health, how long do you want to live? Anti-Aging Research A new class […]

The First to Discover the Sex Chromosomes

When women rarely went to high school, Nettie Maria Stevens (1861-1912) wanted to be a research scientist. We don’t know a lot about her personal life, but she became a biologist. And though she received little credit for it during her lifetime, she was the first to discover the sex chromosomes. Before the 1900s, the link between Mendel’s genetic rules and gender were unclear. Scientists didn’t know what factors determined the sex of an offspring. Some believed external factors such as temperature and nutrition influenced gender. Very few thought chromosomal factors were responsible for the gender of offspring. Early Life Born on July 7th, 1861 in Cavendish, Vermont to Julia and Ephraim Stevens. Records of her early life are sketchy. We know her mother died relatively early in Stevens’s life but don’t know what caused her death.  Her father, a carpenter, remarried and the family moved to Westford, Massachusetts. He earned enough to send both of his daughters to high school, though it was uncommon to educate women. Stevens graduated from Westford Academy in 1880. She and her sister, Emma, were two of three women to graduate from her high school. Teacher, Librarian, and Student Stevens wanted to become a […]

Organ Farms In Space

Space. The Final Frontier. Not a human friendly environment. Star Trek voyagers didn’t have to worry about injuries in space. They had a miraculous medical lab. We may not have that medical lab yet, but we’re getting there. The experiments may be small today, but someday we may have organ farms in space. Yes, we’ve learned a lot about humans living in space during the past fifty-nine years. Unfortunately, one thing we’ve learned is that space changes a person physiologically. Some of those changes are reversible. Some are not. But imagine if we could replace space-damaged organs. Organ farms in space may make human spaceflight a la Star Trek and Star Wars possible. But more than that, organs grown in space may help relieve multiple complications about organ transplants here on earth. The Downside to Organ Transplants Today, when a person needs a new kidney or liver or lung, they must get on a waiting list. The list of people needing organs (no matter which organ they need) is much longer than the list of donors. Years longer. But being on the list doesn’t mean you’ll get an organ. Organs must be a good match to the recipient’s blood type, height, […]