Smartphone and tablet use in the evening and after bedtime was negatively correlated with sperm motility, sperm concentration, and the ability of sperm to swim properly.

Higher levels of 11 gut bacteria were linked to 28 health and disease outcomes, including COPD, allergies, hypertension, alcohol consumption, hyperlipidemia, and obesity.

Using MRI scans, computer modeling, and fatigue tests, deactivation of the motor cortex of the brain was found to be responsible for fatigue, which is the area responsible for exertion and effort.

Researchers regenerate joint cartilage in mice and human tissue, using microfracture, upregulating Bone Morphogenetic Protein-2, and inhibiting Vascular Endothelial Growth Factor.