Cordyceps is a genus of fungi that includes over 400 different species. It's most famous for its unusual life cycle. Many Cordyceps species are known as "parasitic fungi" because they infect and take over the bodies of insects or other small animals, eventually leading to their death. This may sound alarming, but the species of Cordyceps used in dietary supplements and traditional medicine (such as Cordyceps sinensis and Cordyceps militaris) are typically not harvested from insects but are instead cultivated in laboratory environments.

Cordyceps have been used in Traditional Chinese Medicine (TCM) for centuries, primarily to promote vitality and longevity. The fungi are often used to aid with various health conditions, including respiratory disorders, kidney disorders, and to enhance immune function.

In modern times, Cordyceps have garnered attention for their potential benefits related to:

1. Exercise performance: Some research suggests that Cordyceps may improve the way your body uses oxygen, especially during exercise. This might enhance stamina and endurance.
2. Anti-aging properties: Some studies suggest that Cordyceps have antioxidant properties, which can fight cell damage and potentially slow the aging process.
3. Heart health: Preliminary research indicates Cordyceps might have a positive impact on heart health, possibly reducing the risk of heart diseases.
4. Cancer: Some laboratory and animal studies suggest that Cordyceps have anti-cancer properties, but more research in humans is needed to validate these findings.
5. Inflammation: Studies have shown that Cordyceps have anti-inflammatory properties, which can potentially help with conditions where inflammation plays a significant role.
6. Blood sugar levels: Preliminary research suggests Cordyceps may help control blood sugar levels, making it potentially beneficial for individuals with diabetes.

It's important to note that while these potential benefits are promising, more comprehensive studies and clinical trials are needed to fully understand the extent of Cordyceps' effectiveness and potential side effects. Also, people with autoimmune diseases or those on immunosuppressant drugs should be cautious about using Cordyceps, as it may stimulate the immune system.

As with all supplements, it's advisable to consult with a healthcare professional before starting to take Cordyceps. They can provide personalized advice based on your specific health situation and needs.