Overview
- EsSalud issued an alert stating that when temperatures exceed 30°C, older adults and people with cardiovascular disease struggle to thermoregulate and face a heightened risk of dehydration and heat stroke.
- Clinicians describe a mild, sustained “silent” dehydration from continuous sweat and respiration that can go unnoticed, with early signs including dark urine, dry mouth, fatigue, headaches and reduced concentration.
- Guidance emphasizes drinking fluids regularly without waiting for thirst, aiming for roughly 1.5–2 liters per day and increasing intake on hotter or more active days, with a preference for low‑sodium water.
- Preventive steps include limiting sun exposure between 10:00 and 16:00, wearing light clothing and hats, keeping indoor areas ventilated and closely monitoring children, older adults and people working outdoors.
- For suspected heat stroke, officials advise moving the person to a cool, shaded place, starting external cooling and calling emergency services, and they caution not to give liquids to someone unconscious or confused; diuretics can further increase vulnerability.