When ascending to higher altitudes, individuals may experience severe symptoms such as - headache, nausea, shortness of breath, dizziness, drowsiness, disturbed sleep, fatigue and death. Any or all of these symptoms may occur at higher elevations due to lower oxygen levels and barometric pressure. These symptoms are referred to as altitude sickness or AMS (Acute Mountain Sickness). MTN OPS Ascent™ was developed to remedy the body's demanding respiratory system at high altitudes. Ascent™ includes an Adaptogenic Complex, which is a unique group of herbal ingredients used to improve the health of your adrenal system, the system in charge of managing your body's hormonal response to stress - allowing you to ascend higher and stay longer. Give your body the upper hand with Ascent's "breath-giving" formula. Gluten Free.