From a National Institute On Aging release:

Fragmented physical activity, but not total daily activity, was significantly associated with death, the researchers found. For each 10% higher degree of activity fragmentation, mortality risk was 49% greater. The duration of physical activity also mattered: Participants who frequently engaged in short bouts of activity of less than five minutes were more likely to die than those whose activity bouts lasted five minutes or longer. These associations held after adjusting for age, sex, body mass index and other factors.
Daily physical activity, which benefits health and quality of life, typically decreases in older adults. A new study shows that higher fragmentation of that activity — more transitions from activity to sedentariness — may be a better indicator of risk of death than a person’s overall level of physical activity.
Researchers from the Johns Hopkins Bloomberg School of Public Health, Baltimore, analyzed data from the NIA-supported Baltimore Longitudinal Study of Aging (BLSA), looking at a week’s worth of minute-by-minute physical activity for 548 healthy participants age 65 and older (average age, 76).
To read more: https://www.nia.nih.gov/news/fragmented-physical-activity-linked-higher-risk-death-older-adults
“Senior citizens today are healthier, more engaged, and working longer than past generations,” says Chamberlain. “A ‘gray wave’ of senior citizens will be impacting the workforce in coming years, both in the United States and the United Kingdom.”
“The results we saw were stunning and suggest that holistically addressing aging via gene therapy could be more effective than the piecemeal approach that currently exists,” said first author Noah Davidsohn, a former research scientist at the Wyss Institute and HMS who is now chief technology officer of Rejuvenate Bio. “Everyone wants to stay as healthy as possible for as long as possible, and this study is a first step toward reducing the suffering caused by debilitating diseases.”
Being with people at the end of life is very intense work. You are regularly seeing a part of life that a lot of people don’t see, or see very rarely. How do you feel that affects your relationships generally and your friendship specifically?
Leaving nothing to chance, the Cavners are making a number of modifications they might never need. For instance, neither uses a wheelchair, but contractors are making all doorways 3 feet wide for accessibility throughout — just in case. The master bath roll-in shower, flat and rimless, will provide room to maneuver and the master bath vanity is also at wheelchair-accessible height. Kitchen drawers, rather than cabinets, will allow easy access in a wheelchair. The Cavners are closely watching details of the renovation, but it wasn’t a hard decision.
Age change should be allowed when the following three conditions are met. First, the person is at risk of being discriminated against because of age. Second, the person’s body and mind are in better shape than would be expected based on the person’s chronological age (that is, the person is biologically younger than he is chronologically). Third, the person does not feel that his legal age is befitting.
Noted Harvard-trained geriatrician Louise Aronson uses stories from her quarter century of caring for patients and draws from history, science, literature, popular culture, and her own life to weave a vision of old age that’s neither nightmare nor utopian fantasy—a vision full of joy, wonder, frustration, outrage, and hope about aging, medicine, and life itself.
Lifespan, by geneticist David Sinclair and journalist Matthew LaPlante, provides a vision of a not-too-distant future in which living beyond 120 will be commonplace. For Sinclair and LaPlante, the answer lies in understanding and leveraging why we age…
Technologists, particularly those who make consumer products, will have a strong influence over how we’ll live tomorrow. By treating older adults not as an ancillary market but as a core constituency, the tech sector can do much of the work required to redefine old age. But tech workplaces also skew infamously young. Asking young designers to merely step into the shoes of older consumers (and we at the MIT AgeLab have literally developed a physiological aging simulation suit for that purpose) is a good start, but it is not enough to give them true insight into the desires of older consumers. Luckily there’s a simpler route: hire older workers.