Final answer:
Adipose tissue, or fat tissue, is a connective tissue consisting mostly of adipocytes. It is more abundant in obese individuals and is critical for energy storage, insulation, and organ protection. White adipose tissue is most common in adults, while brown adipose tissue is thermogenic and more prevalent in infants.
Step-by-step explanation:
Fat cells, or adipose tissue, appear to be more numerous in those who are obese or overweight compared to those who weigh less. Adipose tissue is a type of connective tissue that is composed mainly of fat-storage cells called adipocytes, also known as body fat. This tissue is crucial for energy metabolism, as it stores fat in the form of triglycerides. It also serves as insulation for the body and provides cushioning to protect organs.
There are two main types of adipose tissue: white adipose tissue and brown adipose tissue. White adipose tissue is most abundant in adults, providing lipid storage, insulation from cold temperatures, and cushioning for organs. It can be yellow due to carotene from plant food. In contrast, brown adipose tissue is more common in infants and is thermogenic, releasing metabolic heat as it breaks down fats.
In an obesity context, the accumulation of adipose tissue becomes chronic, leading to an increased number of fat cells, which is a major health risk. Lifestyle changes, such as diet and exercise, are recommended to manage body fat accumulation and associated health risks.