Essays on Senescence

In the article titled, “Longevity Among Hunter- Gatherers: A Cross-Cultural Examination”, by Michael Gurven and Hillar Kaplan, the authors find that survival of Homo sapiens has gradually increased and people who lived before us, has a shorter life span than people of the current time. The longevity in this article is described as senescence-associated age of death. If human lifespan is divided into three phases: childhood, adulthood and older adult (after 40 years of age), mortality rates are higher among older adults. Lifestyle changes and better sanitation practices have helped to reduce mortality rates across all three phases of ...

Magnesium is an essential nutrient

Magnesium is a mineral which is of great abundance in the human body. Along with enzymes, it is important for protein synthesis, muscle regulation and a host of other important cellular factors such as oxidative phosporylation, energy production which involves production and utilization of ATP and glycolysis. Additionally, Magnesium is required to assist in different cellular processes such as DNA replication and transcription and RNA translation(Barbagallo, 2012). Magnesium is found usually in the bones and or in the soft tissues of humans. Next to Potassium, it is the most abundant ion in the body. The plasma actually contains ...

The aging process occurs during a person’s lifespan. Nobody can escape this process and it happens to everyone. Aging is associated with maturation, growth, and discovery (Cohen et al., 2015). Many abilities of human beings peak before the age of 30, but there are other abilities that continue to grow and develop throughout the life of a person. Most people who are over the age of 65 are healthy, fully independent, and happy while others start experiencing signs of deterioration. These changes are normal and not harmful. The hair thins and start turning gray and skins thins and ...

The morning cup of coffee and all its varieties, is under a constant scrutiny for its impacts on health and cognition of consumers. Various studies have tried to showcase the effects of caffeine on the functioning of human body; in the present essay we will discuss some of the health benefits of coffee based on existing scientific research. Coffee is derived from the dried, roasted, and crushed seeds of the coffee plant. Coffee beans are rich in caffeine, antioxidants and various other phytochemicals. Studies show that the phytochemicals derived from coffee play a significant role in lowering neurodegenerative disease risk(Mikuls ...

Introduction:

The function of many living organisms is coupled with a vast array of cells .These units in turn serve as role playing agents for the fundamental physiology that determines the well being of organisms. However, variations in cellular environment are thought to regulate cell growth, division and survival. A network of molecular pathways or signaling events are interlinked with the cellular functions .Alterations in this specific functional aspect could lead to unnecessary complications which may lead to health abnormalities. In such context , the present description is concerned with highlighting about mTOR Signaling in Carcinogenesis. mTOR stands for mammalian target ...

DNA and cancer treatment

Wade, N. (2010). Speed-reading of DNA may help cancer treatment. Retrieved on June 7, 2011, from The Johns Hopkins University has initiated a method of investigating the progress of a patient’s cancer treatment by means of modern technology for rapid succession, or decoding, huge quantities of DNA. The author in this article states clearly that individuals have a unit account of the DNA within their mitochondria, which are the several energy stores inside each cell. It states that apart form the mutations or modifications, in DNA present in cancer patients, even health individuals are known to have differences in ...