By this, equilibrium of dhatu and strength is maintained, and kapha nourishes the body parts and ensures longevity. In the summer season, nights become shorter, and vata gets provoked in the body in adana kala
ग्रीष्मे त्वादानरूक्षाणां वर्धमाने च मारुते| रात्रीणां चातिसङ्क्षेपाद्दिवास्वप्नः प्रशस्यते ||४३||
(seasons of low body strength, such as summer and rains) due to absorption of fluid. Therefore, during this period daytime sleeping is advocated for all.
ग्रीष्मवर्ज्येषु कालेषु दिवास्वप्नात् प्रकुप्यतः| श्लेष्मपित्ते दिवास्वप्नस्तस्मात्तेषु न शस्यते ||४४||
[Consequences of improper daytime sleep] Sleeping during daytime is contraindicated in the seasons other than summer because it causes vitiation of kapha and pitta.
मेदस्विनः स्नेहनित्याः श्लेष्मलाः श्लेष्मरोगिणः| दूषीविषार्ताश्च दिवा न शयीरन् कदाचन ||४५||
Persons having excessive fat, those who are addicted to fatty substances, having plenty of kapha, suffering from vitiated kapha related disorders, and those afflicted by latent poisons should never sleep during daytime.