This article by HuffPost is worth reading. I'm sharing part of it, but you can read more here
Feeling tired no matter how much rest you get? These behaviors you probably do every day could be to blame.
Think of your energy as water in a cup that has a hole in the bottom. There are two ways to ensure the cup always contains enough water: pour more water into it or make the hole smaller.
“Finding ways to boost your energy is analogous to filling the cup and focusing on ways to make tasks less draining to making the hole smaller,” Tyson Lippe, a psychiatrist at Heading Health in Austin, Texas, told HuffPost. “Both are equally important, yet we often underestimate what can drain our stamina.”So continue doing what’s necessary to boost your energy (eating healthier, exercising, getting enough sleep, setting boundaries) — and make sure that process includes finding and quashing the sneaky energy saboteurs on your plate. To get you started, here are 12 easily overlooked things that can drain your energy (and how to turn things around):
Watching emotionally charged television shows
Waiting too long between meals
Working at a messy desk
Planning too far in advance
Having too many tabs open
Taking calls right away
Leaving off in the wrong spot
Slouching
“Poor posture can deplete your energy levels by putting more pressure on your body’s muscles, joints and ligaments,” said Naueen Safdar, medical director at EHE Health. “Your body has to use more energy to compensate, leading to fatigue.”
The fix: If maintaining good posture isn’t your forte, using various posture-correcting products — an ergonomic office chair or cushion, a posture-correcting brace or RockTape — can help you get into the habit by offering your body gentle reminders, Safdar said.
Adding posture-correcting exercise moves to your workouts that straighten your shoulders and strengthen your core are also paramount to the de-slouching process.