Toronto study suggest that people who live in neighborhoods with a higher density of trees on their streets report significantly higher health perception and significantly less cardio-metabolic conditions (controlling for socio-economic and demographic factors).
Having 10 more trees in a city block, on average, improves health perception in ways comparable to an increase in annual personal income of $10,000 or being 7 years younger.
Protein deficiency rarely occurs as an isolated condition. It usually accompanies a deficiency of dietary energy and other nutrients resulting from insufficient food intake.
Deficiency of this severity is very rare in the United States, except as a consequence of pathologic conditions.
The symptoms are most commonly seen in deprived children in poor countries:
- poor musculature,
- thin and fragile hair,
- skin lesions
- hormonal imbalances.
Edema and loss of muscle mass and hair are the prominent signs in adults.