Biological Scientist Training and Qualifications. Most biological scientists need a Ph.D. in biology or one of its subfields to work in independent research or development positions. Other positions are available to those with a master's or bachelor's degree in the field.Education and training.A Ph.D. is usually necessary for independent research, particularly in academia, as well as for advancement to administrative positions.ther positions are available to those with a master's or bachelor's degree in the field. Education and training. A Ph.D. is usually necessary for independent research, particularly in academia, as well as for advancement to administrative positions.
Not all illnesses are physical. According to American Family Physician, depression is a major cause of weight loss among elderly people, and when Alzheimer's disease is accompanied by weight loss of 5 percent or more, it's generally a precursor to death. Personality disorders such as anorexia and bulimia rob pounds, especially in young people.
The balance between calories-in and calories-out differs for each person. Factors that might affect your weight include your genetic makeup, overeating, eating high-fat foods, and not being physically active. Being obese increases your risk of diabetes, heart disease, stroke, arthritis, and some cancers. If you are obese, losing even 5 to 10 percent of your weight can delay or prevent some of these diseases. For example, that means losing 10 to 20 pounds if you weigh 200 pounds.