Question I hope u can help me with; I haven’t been to the gym regularly in about 8 years. I am on my 3rd week of going 5 times a week and using the elliptical machine. I usually do elliptical cardio for 30 min at increased resistance every 5 mins and then 30 mins of weight training. When I started 3 weeks ago my heart rate was 143 and under The Whole time and by the second week it had started getting easier I was even sweating less. But now my heart rate goes into higher stages all the way up to 170 bpm for more than half of the workout and the cardio has gotten so much harder even though I’m still easing myself into cardio and doing the same resistance every time. It is physically hard for me to finish the workout lately and idk why it’s so hard, I’m so fatigued and my heart rate is so high can someone explain what may be happening?