You will release tension and breathe better. It will work its range, its resonators and its articulation. A few fun and systematic exercises that put your physical voice, mind and ear on the same page. An effective warm-up also helps you feel comfortable throughout the range before singing the extreme notes of a song.
In fact, you can do a lot of things during your normal day to keep an eye on the voice and help your instrument stay in good shape. The buzzing and trills of the lips activate your resonators, which in turn helps to restore the quality of vocal tone after sleeping for several hours. Check out this Youtube vocal warm-up lesson where I demonstrate how to do this warm-up without an instrument. If you have vocal nodules, for example, an otolaryngologist may recommend that you rest your voice to help your vocal cords recover.
Along the same lines, any experienced performer or voice actor understands that vocal exercises or vocal exercises are necessary to ensure that they can offer their best performance when approaching the microphone. The practice is permanent, and if you practice regular warmups before singing, as well as on days off, you will be a better singer in every way. You see, inside the larynx, the two vocal cords undulate together when air passes through something called the Bernoulli Effect. Learning how to properly make a yawning sigh can be a wonderful trick to add to your vocal warming toolbox.
But, if you walk into the booth feeling relaxed, agile and physically ready to approach reading that song or script, your vocal performances will also reflect that state. And while your vocal warm-up should fit your voice, there are some vocal warm-up tricks that tend to work for everyone. Now, although Bratty's “Nay” is a pretty ugly exercise, it can be a great vocal warm-up to help you sing with a mix.