Why do tendons and ligaments not heal as readily as other tissue? What is the recommend dietary intake of calcium? What foods are rich in calcium?

Why do tendons and ligaments not heal as readily as other tissue? What is the recommend dietary intake of calcium? What foods are rich in calcium?

What inorganic molecules are important as one continually sweats due to heat and exertion? What is a good source of replenishment? Thinking back a few chapters, how would one facilitate tissue healing within bone after disease or injury? What preventative measures can be taken, if any?