How to start learning neural networks from scratch for a person with biology background. Kindly provide with resources with suggestions

I am a Physiotherapist (24M) and want to pursue MS in exercise science. In future I aspire to do PhD in neurobiology and also eventually transition in AI and neural networks. I understand it's an extremely tough field and u need to learn a whole lot of things if u want to start understanding neural networks. I know It's a long process taking many years but I want to start this journey side by side with my studies and job …

biology eventually exercise future networks neural networks neuralnetworks neurobiology person phd resources science suggestions transition