02/03/2026
If you have hEDS or HSD and struggle with dizziness, rapid heart rate, or feeling awful when you stand, there’s a reason.
There’s a strong overlap between hypermobility and dysautonomia, the most common of these being Postural Orthostatic Tachycardia Syndrome (POTS).
In hEDS/HSD, connective tissue is more elastic, including in your blood vessels. That means the vessels may not constrict as effectively when you stand, leading to blood pooling and reduced blood return to the heart.
Your body compensates by increasing heart rate. This can lead to symptoms like dizziness, light headedness, fainting, fatigue, headaches and “coat hanger pain”. This increasing heart rate can make things like tolerance to exercise also particularly challenging (for my runners out there)
For many people living with POTS, increasing daily electrolytes (in particular sodium) may help improve your symptoms by retaining more fluid circulating in the bloodstream.
More circulating blood volume = better blood return to the heart = less dramatic heart rate spikes when you stand.
Electrolytes aren’t a cure, and they’re not right for everyone, but for some, they can be a game changer in symptom management.
*this is for information purposes only and is not medical advice. If you are experiencing any of the above symptoms speak to your healthcare team to be properly assessed. You can find EDS aware practitioners on the EDS society website practitioner directory.