This study aimed to identify the impact of sudden weight on some physiological variables and physical efficiency in a team wrestling sport at the age of 16 to 18 years and amounted to a sample of 12 wrestler of the participants in the Championship, and the researcher used the descriptive approach and conducted the pre- measurements and the fingerprinting the main important results were that the sudden weight loss has its negative impact and adverse physical efficiency in a wrestling team and also on some physiological measurements such as (pulse, systolic blood pressure-blood pressure Diastolic-aerobic capacity) which may be detrimental to the player during the Championships and his sport future and his health profile . The process of weight loss individual sports in General and the sport of wrestling in particular is an important concern for the training process and players alike.