In modern times as we live in metros or developed cities and town ,outr attraction to loose weight takes us to different form of excercises and we adapt a theory of loosing weight by SWEATING AS SWETS WILL COME OU OUR BODY WILL LOOSE WATER AND SODIUM SO LESS WEIGHT,SO SONA BATH  AND JACUZEE  BATH AFTER A HOT EXCERSISES is commonly practised
                               These very hot temperatures affect our TESTES much ,that is why GOD SHIFTED IT TO SCROTUM BELOW PENIS FROM ITS ORIGINAL POSITION BELOW KIDNEY IN OUR ABDOMEN.(in Intra uterine or womb period in Foetal life it was inside abdomen and it starts from 5th-7th month it starts descending and come by 9 month inside scrotum so that intra abdominal high temperature doesnot damage Testes or spermatocytes to produce sperm,any hot temperature will kill these sperms and SUCH FINDING HAS BEEN DETECTED IN SOME PERSONS TAKING SAUNA BATH ,SO INSPITE OF HAVING GOOD SEXUAL LIFE,DESIRE ,PENETRATION AND DISCHARGE PREGNANCY OFTEN DOES NOT OCCUR BECAUSE OF LOW SPERM COUNT IN HUSBAND .
                       An Italian study warned that frequent Sauna visits can lower sperm counts in men. However, the effect is reported to be temporary. The study researchers believe high temperature in Sauna could affect the sperm production that results in decreased sperm counts. The study results have been published in the journal Human Reproduction.
A team of scientists from University of Padova, Italy, assessed ten Finnish men with normal sperm counts. All the participants aged between 30 to 40 years. The participants were asked to visit Sauna for at least 15 minutes, twice weekly, over three months. After the study period, they were asked to stop visiting the Sauna.
When compared to initial sperm counts, decreased levels of sperm counts were found during Sauna visits. The decreased sperm counts remained over months after the participants stopped Sauna sessions. However, the counts become normalized after six months.
It is now proved that exposure of scrotal areas to high temperatures can affect sperm production, according to Dr. Andrew Kramer, Urologist, University of Maryland Medical Center. The anatomical, hanging position of testicles is to escape from the body weight, he added.
Genetic disorders with undescended testicles lead to impaired sperm production and sterility in men, Dr. Kramer said.

However, the sperm count is not always corresponds to men’s fertility. The present study did not assess the participants’ fertility. It is not possible to say whether Sauna affects the men’s fertility, he added.
The researchers assessed the DNA damage and impaired mitochondrial functions in sperms of Sauna visitors. These findings shed some light about the possible mechanisms of impaired sperm production.
Dr. Kramer said additional studies involving a large number of participants are needed to ascertain such results. Further studies are to be conducted on effects of Sauna visits on impaired fertility men and boys who did not attain puberty.