Below is a list of multiple ambient, study inducing, relaxing tracks that'll get those stress levels down in a heartbeat. There is a variety of tracks, some stemming from video game soundtracks, some from movie scores, and some that'll make you feel like you're studying in an enchanted forest.
1. "Ashes Of Our Forever" by Christian Scott Atunde Adjuah
2. "Movements (Chapter III) - Edit" By Leon Vynehall
3. "The Gates Of Hell" from BAYONETTA
4. "Kt" by Bexar Bexar
5. "Alone in Kyoto" by Air
6. "It's Magical" by Masayoshi Fujita
7. "Requim For Dying Mothers, Pt. 1" by Stars Of The Lid
8. "Sad Alron" by Mark Pritchard
9. "The Finishing" by Stavroz
10. Honestly, the entire soundtrack to L.A. Noire... (with some rain in the background)
11. ....And the entire soundtrack to Heavy Rain
12. "#3" by Aphex Twin
13. "Sleep Deprivation" by Trent Reznor & Atticus Ross
14. "Gumshoe Blues" by Paul Pritchard
15. "Prowler" by Bohren & Der Club Of Gore
16. "Impossible Island" by Gaussian Curve
17. "Hello from the Edge of the Earth" by Mary Lattimore
18. "Godfather" by Terrence Blanchard
19. "Rise" by Recondite
20. "Aisatsana" by Aphex Twin
21. "First Memory" By Shook
22. "Differently, Still" by BADBADNOTGOOD
23. "Equity" by Dedekind Cut
24. "Still Space" by Satoshi Ashikawa
25. "We Played Some Open Chords" by A Winged Victory for the Sullen