The brain is the complex organ of the body that requires constant care to ensure its full function and for as long as possible. There are several factors that can help keep a healthy and alert brain throughout our lives: 1- Exercise Physical activity has been shown to inversely correlate with the risk of dementia…
The immune system starts to become weak around the age of 60 years through a process known as immunosenescence. It is estimated that 2 billion people will have an age of over 60 by 2050 [1], and therefore, would be affected by immunosenescence. What Is Immunosenescence? Immunosenescence is the process of aging of our immune…
Iron Deficiency is the most common cause of anemia in the elderly. It is due to abnormalities in the gastrointestinal tract such as stomach ulcers and cancer, and the reduction in iron supply through diet. It manifests with a reduced size and color of red blood cells. The prevalence of iron deficiency in individuals older…
Hair loss or alopecia is a temporary or permanent loss of hair that mainly affects men but is also observed in women. Hair loss is associated with disorders that affect your scalp or the entire body such as illness, stress, iron deficiency, genetics, weight loss, aging, cancer treatment, and lifestyle. 1. What Is the Biology…
Aging is a natural and time-dependent decline in body function due to alterations at the molecular and cellular levels that leads to changes in the function of the cardiovascular system, the brain, the digestive system, the bladder and urinary tract, the muscles, joints, and muscles, the eyes and ears, the teeth, and the skin. Changes…
Wound healing is a natural reaction of our body to tissue injury that involves crosstalk between different cells, cytokines, mediators, and the vascular system to repair the damaged tissue. It involves 4 main phases including homeostasis, inflammatory response, proliferation, and remodeling [1]. 1. What Are the Stages of Wound Healing? Homeostasis Phase This phase involves…
Following the fecundation of an egg by a sperm, the fertilized egg begins a series of cell divisions that leads to the formation of a mass of cells known as the blastula. This mass contains two types of cell masses, the trophoblast, and the inner cell mass. The trophoblast leads to the formation of the…
A Headache is a symptom of continuous pain in the head, face, or neck that can last from 30 minutes to several hours, while a migraine is a severe form of headache that manifests as an excruciating pain on one side of the head accompanied by a feeling of sickness and an increased sensitivity to…
The hallmark of Alzheimer’s disease (AD) is associated with the accumulation of “senile” plaques that are composed of amyloid-beta (Aβ) protein that surround neurons in affected regions. This accumulation results in loss of neurons in the hippocampus and cerebral cortex, leading to progressive cognitive decline such as memory defects. A connection between the brain and…
Epigenetic mechanisms, including DNA methylation, histone modification, and RNA interference, have been shown to play crucial roles in regulating the expression of genes that are involved in age-related diseases and longevity [1]. These mechanisms are mediated by modifying histone enzymes and noncoding RNAs. However, several environmental and dietary factors can lead to their imbalance, leading…
