The benefits of good posture

evidence /ˈev.ɪ.d ə n t  s/ noun [ U ]
one or more reasons for believing that something is or is not true
Several experts are to give evidence on the subject.
surplus /ˈsɜː.pləs/ /ˈsɝː-/ noun [ C or U ] , adjective
(an amount which is) more than is needed
The world is now producing large food surpluses.
phenomenon /fəˈnɒm.ɪ.nən/ /-ˈnɑː.mə.nɑːn/ noun [ C ] plural phenomena
something that exists and can be seen, felt, tasted, etc., especially something which is unusual or interesting
Gravity is a natural phenomenon.
narrow sth down phrasal verb [ M ]
to make a number or list of things smaller and clearer, by removing the things that are least important, necessary or suitable
We narrowed the list of candidates down from ten to three.
dual /ˈdjuː.əl/ /ˈduː. ə l/ adjective [ before noun ]
1. with two parts, or combining two things
This room has a dual purpose , serving as both a study and a dining room.
unfold /ʌnˈfəʊld/ /-ˈfoʊld/ verb
to open or spread out something that has been folded
If we unfold the table we can fit eight people around it.
flurry /ˈflʌr.i/ /ˈflɝː-/ noun
a sudden, short period of activity, excitement or interest
The prince's words on marriage have prompted a flurry of speculation in the press this week.
a flurry of activity
zip /zɪp/ verb
informal to move or go somewhere very quickly
I'm just going to zip along to the shops - I won't be long.
in/out of sync
If two things are in/out of sync, they reach the same or related stage at the same time/at different times.
tablecloth , UK also table cloth /ˈteɪ.bl ̩.klɒθ/ /-klɑːθ/ noun
a large piece of cloth which covers a table during a meal and protects or decorates it