My biological clock is disrupted, and I've been having sleepless nights.

I use a heart rate monitor during my daily exercise.

He makes a living as a freelance designer.

He wrote an ancient poem using the literary language form.

The sympathetic ganglion is a part of our autonomic nervous system and controls various functions of the body.

When the sympathetic nerves are activated, the heart rate increases.

We made plans for the picnic next week.

He and I have a deep and close relationship.

Computational geometry is an important field of computer science.

My new light vehicle is fuel-efficient and very convenient.