can only give you anectdotal advice, but there are definitely people that do study two degrees at once.
I have a friend who was a classmate during the last five years. We studied physics. But she also studied mathematics, with a one year delay in respect to the physics degrees.
It was far from easy, but she somehow managed it with flying colors, publishing several articles along the way, and even keeping some of her private life in the process! But the important thing to keep in mind is that math and physics are very similar degrees.
Even though you have your exams, and homework, and you most solve a lot of problems in your free time, if you are good at understanding mathematical problems you will also be good at physics and vice versa. Plus, neither degree requires excessive memorizing or important exams that take months to prepare for.
I have many friends who study medicine and, to the majority of them, it was a full-time job. The way the exams are held, at least where I studied, makes it easy for some students to study for half a year and then still fail the exam, because they got they pulled the wrong question or the examiner had a bad mood or whatever. And having to balance two degrees, especially degrees where the bodies of knowledge don’t intersect with each other, might make such a failure more probable.
If you are really passionate about the subject you want to graduate in besides medicine, and you feel you have a lot of free time, then don’t let me disparage you. I can’t know how the medicine degree works where you come from. Maybe it’s much more fair, or requires less memorizing.
It just would be a shame to not finish your first degree because of some second. But it can be done.
strongly depends on whether or not you speak Dutch. Most language studies are taught in Dutch. For foreigners, the choices are limited to English language (English or American), Dutch, and 4 languages of south and southeast Asia. Linguistics often (if not always) includes learning a foreign language and gives you more options, but you will not really ‘study’ it.
For those who do speak Dutch though, there are many choices. I looked at a guide and found that there is a study for all major languages and some grouped studies that allow specialization.
I counted a total of 29 languages, including Latin and ancient Greek, spread over 19 different studies. I might have missed some.