Indoor treadmill recovery-Z2 — garage estimated 73–75°F from Fremont 63°F partly cloudy. Yesterday reached 128, so do not stack another moderate push. Keep Steady at 2.6/2% unless HR is low. If HR stays <108 after min 20, add +1% incline. If HR reaches 123+, drop incline by 1%. If 125+ persists, ease to 2.3/0%. STOP if headache, dizzy, vision changes, or calf pain. Small water sips; sit 2 min before standing.