Traffic noise exposure may exacerbate Parkinson's disease symptoms, leading to more hospital visits. Drugs, not alcohol, are now the leading cause of fatal car crashes in the US due to legalized marijuana and opioids. Energy drinks have a greater effect on heart activity and blood pressure than other caffeinated drinks. Increasing children's physical activity by 25 minutes three times a week could save $62.3 billion in future medical costs and lost wages. Lumbar disk degeneration is common in young women and progresses rapidly with age.