The nervous system is responsible for controlling many body functions, such as heart rate, blood pressure, and digestion. A healthy nervous system is essential for maintaining a balanced weight and a healthy diet. It’s also important to get enough sleep and exercise and to reduce stress levels. Here are some tips to help keep your…
A delusion is a psychotic disorder where an individual has a fixed belief in an incorrect perception of reality. The most common delusions are: The risk of delusional disorder in the general population is estimated between 0.05% to 0.1% and affects individuals from the age of 18 years to 90 years [1]. The persecutory and…
Being hungry is natural and can be due to increased physical activity or pregnancy. However, an increased appetite over a long period of time could be a result of mental health disorders or diseases: I. Hunger and Mental Disorders 1- Hunger, Stress, and Anxiety The link between appetite, stress, and anxiety is associated with the…
Emotionally unstable personality disorder or borderline personality disorder (BPD) is a personality disorder that affects impulse control, interpersonal relationships, and self-image. BPD is characterized by emotional dysregulation, impulsive aggression, repeated self-injury, and chronic suicidal tendencies. The prevalence of BPD is estimated to be 1.6% in the general population and 20% in the inpatient psychiatric population [1]. It…
Energy drinks are one of the most consumed dietary supplements that are popular among men between the ages of 18-34 years and teens between the ages of 12-17 years. They contain large amounts of caffeine, sugars, taurine, B vitamins, glucuronolactone, carnitine, ginseng, Yohimbe, and bitter orange. Although energy drinks may enhance alertness and improve reaction…
Hair loss or alopecia is a temporary or permanent loss of hair that mainly affects men but is also observed in women. Hear 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. What Is the Biology of…
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…
Short-term memory (STM) is the ability of the mind to consciously store, maintain, and manipulate phonological (speech sound), spatial, and visual information for limited periods of time. Therefore, STM contributes to the learning of new information and aspects of speech comprehension and production. However, STM loss is observed during aging (after 55 years of age)…
Melanocytes are cells that specialize in producing melanin pigments, responsible for the color of the skin and hair. They are typically located in the basal layer of the epidermis and in hair follicles where they are originated from a population of stem cells, known as melanocyte stem cells. However, the coloration of hair and skin…
The gut flora (microbiota) plays an important role in human health through their metabolic function in breaking down ingested food to provide nutrients to cells and organs of the body. Among the metabolic products that are generated by the gut flora, proteins are critical for the function of the nervous system, such as serotonin, which…
