Respawn Player after Health 0

Hi, I have a problem. I'm new in Unity and want my Player to respawn at the start after his health is 0 but i dont realy know how to do this. I hope u can help me.

My Script: using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement;

public class Player : MonoBehaviour { public int maxHealth = 100; public int currentHealth; public HealthBar healthBar; public int Respawn;

 private void Start()
 {
     currentHealth = maxHealth;
     healthBar.SetMaxHealth(maxHealth);
 }

 private void OnTriggerEnter2D(Collider2D collision)
 {

     if (collision.gameObject.CompareTag("Spike"))
     {
         TakeDamage(20);
     }
 }

 void TakeDamage(int damage)
 {
     currentHealth -= damage;

     healthBar.SetHealth(currentHealth);
 }

}

and my Script for the HealthBar:

using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI;

public class HealthBar : MonoBehaviour { public Slider slider; public Gradient gradient; public Image fill;

 public int fillAmount { get; internal set; }

 public void SetMaxHealth(int health)
 {
     slider.maxValue = health;
     slider.value = health;

     fill.color = gradient.Evaluate(1f);
 }

 public void SetHealth(int health)
 {
     slider.value = health;

     fill.color = gradient.Evaluate(slider.normalizedValue);
 }

}