What causes a dehydration headache?
Our brains are around 80% water and when we become dehydrated, our brain tissue loses water causing our brain to shrink!!
This triggers the pain receptors surrounding the brain, giving us the dreaded headache.
Being dehydrated also causes the blood volume to lower resulting in less blood flow and oxygen to the brain, In response the blood vessels in the brain dilate resulting in swelling and inflammation further worsening the headache.
Headache pain can occur all over the head but often movements such as walking around or bending forward can aggravate them and making the pain worse.
Dehydration headaches don't occur on there own, other symptoms will most likely be present including,
- Dry mouth
- Increased blood pressure
- Brain Fog
If any of these other symptoms are present it's recommended to increase your fluid intake and reduce activity until your feeling better and the symptoms have subsided.
Exercise, Physical & Demanding work, Sickness, Alcohol consumption, Sweat Loss and Hot conditions can all lead to high fluid losses and dehydration.
How to treat a dehydration headache?
Drink plenty of water, but don't attempt large amounts all at once. Our bodies can only absorb a small amount of water at a time so sipping a cup of water every 15 mins is the way to go.
Drinking too much at once just leaves you feeling bloated and uncomfortable.
Replace lost electrolytes, these are lost through sweating and are essential in water retention.
Adding in a cup of electrolytes to every cup of water is beneficial in getting the balance back and once your feeling well hydrated Thorzt recommend using an electrolyte replacement in the following ratios.
- Hot or Heavy Activity 2 to 1
- Onsite 3 to 1
Consistency is the key and drinking around 250ml every 15-20 mins throughout the day will keep you feeling great!