What are the signs of optimal hydration versus over-hydration?
Signs of optimal hydration:

1. Clear, light-colored urine
2. Thirst is minimal or non-existent
3. Normal blood pressure and pulse
4. Efficient sweating
5. Good energy levels and mental focus
6. Normal body temperature

Signs of over-hydration (hyponatremia):

1. Nausea, vomiting, and/or diarrhea
2. Fatigue and weakness
3. Confusion, disorientation, and/or headache
4. Muscle weakness and cramping
5. Rapid weight gain
6. Irregular heart rhythm

Optimal hydration is when your body has the right balance of fluids and electrolytes. Signs of optimal hydration include clear and frequent urine, normal blood pressure, and good cognitive function. Over-hydration, on the other hand, can lead to hyponatremia, a dangerous condition where the body's sodium levels are too low. Signs of over-hydration include headaches, nausea, and confusion.