Heat and Parkinson's

People living with Parkinson’s are more at risk of heat-related illnesses. This risk is even higher if you live alone or take certain types of medication.

The signs of becoming overheated or dehydrated (low on fluids) can sometimes be difficult to recognise. Some medications can make this worse, and Parkinson’s may change the way you sweat. This can mean your body doesn’t cool down as quickly or effectively as it once did. If you are concerned, speak to your GP or pharmacist for advice tailored to your needs.

Rotigotine skin patch (Neupro)

Make sure that the patch is kept out of direct sunlight. If you’re wearing it outside it’s recommended to cover the patch with loose clothing and to avoid prolonged exposure to the heat. You must store Neupro below 25 degrees celsius.

Low blood pressure

Some people with Parkinson’s may experience low blood pressure (hypotension). Symptoms of low blood pressure are most likely to happen when there is an increased demand for blood in your body, such as on a summer’s day. 

This is because the blood vessels, particularly those close to the skin, become larger as a way of cooling the blood down. This also reduces your blood pressure.

If you do experience low blood pressure, don’t sit in the sun or a hot environment for too long. Try to avoid a lot of activity when it’s hot and make sure you drink plenty of liquids. If you feel too hot, use a fan or a cold flannel to cool yourself down.

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Some tips for keeping safe during the heat:

     
  • Try to stay cool – placing a damp cloth around your neck or soaking your feet in a bowl of cool water can help. Turn off the heating and switch off any lights or electrical appliances you’re not using.
  • Keep out the heat – increase shade indoors or cover windows that get direct sunlight.
  • Use natural ventilation – open windows when the air outside feels cooler than inside (for example, at night), as long as it is safe and practical to do so.
  • Improve airflow – increase air movement through your home wherever possible.
  • Use air conditioning wisely – if you have air conditioning, make sure it uses a fresh air supply.
  • Use electric fans with caution – fans may not be safe in extremely high temperatures or for people with certain health conditions. If unsure, seek medical advice.
  • Stay hydrated – drink plenty of water throughout the day. Carry water with you and take regular sips, even if you don’t feel thirsty. Aim for pale, clear urine as a sign of good hydration. If your doctor has advised you to limit your fluid intake, ask them how best to stay hydrated during hot weather.
  • Eat small, cool meals – you may feel less hungry when it’s hot, but it’s still important to eat. Light meals such as salads and sandwiches can help maintain energy without raising your body temperature or heating up your kitchen.
  • Stay connected – write down the contact details of two or three friends or relatives and ask them to check in on you during a heatwave. Phone calls, texts or video chats are great ways to stay in touch. If you know someone who lives alone, reach out to ensure they have what they need to stay safe.
  • Plan ahead for shopping and chores – try to shop and run errands early in the day, before temperatures rise. If you need to be outdoors, take breaks in shaded or cool indoor spaces.
  • Dress for the weather – we’re used to layering clothes in Ireland, but during a heatwave, loose-fitting, light-coloured clothing is usually more comfortable and helps you stay cool.
  • Get medical help if you feel unwell – if you start to feel ill, don’t wait. Contact your GP or go to an emergency department if necessary. Medical services remain open and ready to help during hot weather. Never hesitate to seek help when you need it.

When to get medical help

When to Seek Urgent Help

If you feel unwell – and especially if you:

  • are confused or disorientated

  • feel very dizzy

  • haven’t urinated all day

  • feel like your heart is racing

  • experience fits (seizures)

  • are caring for someone who is drowsy or difficult to wake

These may be signs of serious dehydration and require urgent medical attention.