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Understanding the roles of genes in eating behaviors and food preferences could lead to personalized diets that are easier to follow

Being able to sleep well in old age can cut the risk of developing a wide range of mental and physical disorders such as Alzheimer’s disease, say scientists.

For the first time, scientists have discovered a connection between a cell's fat content and its lifespan, which could explain the 'obesity paradox' that's been puzzling scientists for decades: why obese people have the lowest all-cause mortality rates, whereas the rate for those who are fit and lean is higher.

This could explain why obese people have lower mortality rates. For the first time, scientists have discovered a connection between a cell's fat content and its lifespan, which could explain the 'obesity paradox' that's been puzzling scientists for decades: why obese people have the lowest all-cause mortality rates, whereas the rate for those who are fit and lean is higher.

Obesity is a multifactorial disease characterized by the excessive accumulation of fat in adipose tissue and peripheral organs. Its derived metabolic complications are mediated by the associated oxidative stress, inflammation and hypoxia. Oxidative stress is due to the excessive production of reactive oxygen species or diminished antioxidant defenses. Genetic variants, such as single nucleotide polymorphisms in antioxidant defense system genes, could alter the efficacy of these enzymes and, ulti...