Ashwagandha has become one of the most popular supplements for those seeking less stress, better sleep, and more stable energy throughout the day. Its benefits are no coincidence. There is scientific evidence to support them, with results consistent across various studies. But there's something many people overlook. Not all ashwagandha works the same. If you're looking for real effects, the most consistent form is KSM 66 , a standardized, well-studied extract with a quality that's evident in the results. What does ashwagandha do to your body? Ashwagandha is an adaptogen. Its main function is to help the body better regulate stress. When cortisol levels stabilize, everything improves: mood, focus, energy, and sleep. Its active compounds also help protect cells against oxidative stress and maintain a balanced bodily response. This explains why its use is associated not only with mental calm but also with improved physical and cognitive performance. If you're looking for a form of ashwagandha that maintains that natural and balanced profile, a good option is Ashwagandha Teresa Pons , made with KSM 66 extract of whole root. Key benefits backed by science It reduces stress and improves mood. Several studies have observed that ashwagandha helps reduce cortisol levels and promotes a greater sense of calm. It does not act as a sedative, but rather as a regulator that helps maintain emotional stability throughout the day. Improve sleep without forcing the body Many people notice that they fall asleep more easily and maintain a deeper sleep. This effect is related to both stress reduction and the plant's natural support for sleep quality. Increases energy, strength, and performance By promoting better adaptation to stress and more efficient recovery, ashwagandha can contribute to improved strength and endurance, which is why it is commonly used in training routines. Improves focus, memory, and mental clarity Some studies show improvements in attention, immediate memory, and processing speed, especially during periods of high mental load. Hormonal support in men The research has also observed a positive contribution to male hormonal balance, vitality, and fertility-related parameters. Why specifically choose Ashwagandha KSM 66? This is the key point. Many products list "ashwagandha" on their label, but the effects can vary considerably. KSM 66 is one of the most studied and consistent extracts. What makes it different? Strong scientific support: much of the current clinical studies have been conducted with KSM 66. Whole root extract: without leaves, respecting the traditional profile of the plant. Clean extraction processes: with a balanced concentration of active compounds. Withanolides: the true active value of ashwagandha To understand why one ashwagandha works better than another, it's essential to look at the withanolides . These are the main natural bioactive compounds in the root of Withania somnifera and are responsible for most of the studied effects of this plant. Withanolides contribute to the adaptogenic action of ashwagandha, supporting the body's ability to manage physical and mental stress. They have also been studied for their antioxidant activity and their role in maintaining internal balance. Not all ashwagandhas provide the same quantity or quality of withanolides. Factors such as the use of leaves, aggressive extraction methods, or poor standardization can lead to irregular and inconsistent results. KSM 66 extract stands out for its stable and well-balanced content of withanolides, derived exclusively from the whole root. A good example is Teresa Pons' Ashwagandha KSM 66 , formulated with a withanolide content exceeding 5% , guaranteeing consistent quality and a more reliable experience with continued use. This balance in the concentration of withanolides is key to respecting the natural profile of the plant and obtaining effective support without straining the body, which is why KSM 66 is one of the most widely used extracts in clinical studies.