Yes, as you increase your joy, you are likely to have better physical health.
قَالَ :‏ « إِذَا كُنْتَ سَعِيدًا بِحَيَاتِكَ ٱلْآنَ ،‏ فَعَلَى ٱلْأَرْجَحِ سَتَتَمَتَّعُ بِصِحَّةٍ جَيِّدَةٍ فِي ٱلْمُسْتَقْبَلِ » .‏