Menopause and sexuality

MANILA, Philippines – Humans are the only mammals with menopause. In every other species, the female continues to menstruate throughout her entire lifespan. But, by the time a woman reaches 50 (earlier in some cases, later in others), her menstrual periods begin to taper off until they finally stop.

MicroRNA Controls Mammary Gland Development In Mice

Hormones, growth factors and several proteins ensure that development occurs in the right way, at the right time. The components that cause breast development in mammals, for example, were thought to be largely known…

What Scientists Can Tell You About Cellular Aging In A Nutshell

Learning about cellular aging, or cellular senescene, is at the very center of a lot of research. Natural beauty and natural skin care are two important reasons for someone to ask about their cellular age. Investigators look into cellular aging theory to prolong life in a meaningful manner. When science finds upcoming advancements, the information can mean much less suffering and pain.

As an example, the research into cancer cells and cardiovascular disease are two areas of great concern. Avoidance or reduction of these two maladies can mean respite not just for individuals but also for their families, too.

A lot of emphasis on cellular aging has gone into what’s known as replication sequence. It’s the research into the expansion and perhaps mutation of cells. This element is frequently studied in the fibroblast of the cell, or the ligament. The initial assumption is the fact that normal cells can multiply only so often. It has been realized that after 60 cell divisions, cells have a tendency to forfeit their power to multiply. Then they in due course quit dividing and die.

This is precisely how individual cells mature and die. There is really a correlation as to how many times a cell may reproduce and the age of the cell donor. Cells from a younger cell donor tend to have more cell divisions than those cells bequeathed by an older donor.

This is true for all mammal species. Cells in a culture that come from mammals with reduced life spans relative to humans will have a lower number of divisions. Thus cells from a dog which lives nine to 15 years will divide again and again a fewer number of times than those cells from an elephant that is likely to live longer than 30 years.

People who endure Werner’s affliction which is definitely a hereditary affliction that triggers an individual to age ahead of time have a small number of cell divisions than people who age normally. Thus there’s a built-in computer for each cell that pinpoints at birth the range of times a cell with self-divide. As soon as the assigned range of divisions have taken place, cells begin to die.

The search to overpower cellular senescene, or aging, keeps going. Scientists now believe there are exact ways that can impact the speed at which cells multiply. It is a lot easier to uncover approaches that can help decrease the rate at which cells regrow as observed in studies of people who smoke, consume alcohol in quantity, or ingest toxic drug treatments. They have a tendency to age faster as observed throughout their skin.

Sleep also impacts the cellular aging process.  Insomnia boosts cellular aging together with an increased susceptibility to disease. Mice in tests produce proteins in response to stress and lack of sleep. These have a tendency to impair their mental faculties from working at normal capacity.

The entire write-up found under cellular aging theory covers how vitamin D impacts telomeres which are the human body’s built-in clocks.

Why Females Live Longer Than Males: Is It Due To The Father's Sperm?

Researchers in Japan have found that female mice produced by using genetic material from two mothers but no father live significantly longer than mice with the normal mix of maternal and paternal genes. Their findings provide the first evidence that sperm genes may have a detrimental effect on lifespan in mammals…