Answer: Ligaments
Explanation: Lean body mass is simply everything that's is not fat. This includes your bones, organs, muscles, ligaments, tendons and fluids. So the answer to your question is Ligaments.
In recent years, fluoride is an essential nutrient necessary for producing healthy teeth where water and toothpaste companies fluoridate the toothpaste and public water supplies.
However, studies shows that fluoride is more poisonous than lead for in hypersensitive individuals, it can cause skin eruptions such as atopic dermatitis, eczema and urticaria. According to National Cancer Institute, fluoridation of water and toothpaste has been linked to significant increase in genetic damage that lead to bone cancer called osteosarcoma.
Moreover, there are also reports that shows artificially fluoridated water, can inhibit enzyme systems, damage the immune system, contribute to calcification of soft tissues, worsen arthritis and cause dental fluorosis.
In the end, further studies and research must be conducted to fully address the truth about fluoride and fluoridation.
During stress, hormones like epinephrine and norepinephrine are secreted at higher levels. The sympathetic nervous system is also activated at that time. There is also an increase in blood pressure and improper insulin-dependent glucose disbursal. All of these lead to insulin resistance, and central obesity. Vascular complications also increase. The Basic Metabolic Rate (BMR) lowers down during the same because of disruption in the digestive system.