We presume the birth details shared are those of your father. He would have good self immune system and would be able to withstand minor health ailments with ease.
As per his chart, he could have some blood and/or nerve related ailments which he would be able to cope up and overcome them effectively and would be in good health.
The current ongoing time is moderately conducive for his health till around mid 2024 and he would have a positive and favourable time from then onwards. He would be hale and hearty.
Tula Lagna with the Lagna lord Venus posited in the fifth house; Rahu posited in the Lagna; Sixth lord Jupiter posited in the seventh house conjunct Ketu; Debilitated Mercury conjunct Sun posited in the sixth house; Sixth lord of Shashtamsha is also Jupiter and is posited in the eleventh house of Shashtamsha conjunct Mars; Ashtakavarga score of sixth house is 31.