Because nutrient dense foods contain a lot of nutrients that are essentials to our body such as proteins, vitamins, and minerals, with a relatively lower calories intake
Example of nutrient dense foods are : Salmon, kale, beans, and potatoes
Mood: anxiety, apathy, general discontent, guilt, hopelessness, loss of interest, loss of interest or pleasure in activities, mood swings, or sadness
Sleep: early awakening, excess sleepiness, insomnia, or restless sleep
Whole body: excessive hunger, fatigue, loss of appetite, or restlessness
Behavioral: agitation, excessive crying, irritability, or social isolation
Cognitive: lack of concentration, slowness in activity, or thoughts of suicide
Weight: weight gain or weight loss
Also common: poor appetite or repeatedly going over thoughts
I’m pretty sure it’s stress
False, injuries are spontaneous and can happen to anyone flexible or not. However I do not know the statistics behind flexibility effecting injuries.